diff --git a/blog/.backup.tar.gz b/blog/.backup.tar.gz
index d672844..1cb180f 100644
Binary files a/blog/.backup.tar.gz and b/blog/.backup.tar.gz differ
diff --git a/blog/.yesterday.tar.gz b/blog/.yesterday.tar.gz
index 279b319..7421933 100644
Binary files a/blog/.yesterday.tar.gz and b/blog/.yesterday.tar.gz differ
diff --git a/blog/all_posts.html b/blog/all_posts.html
index a2ce6fa..84b238a 100644
--- a/blog/all_posts.html
+++ b/blog/all_posts.html
@@ -17,6 +17,7 @@
 <h3>all posts</h3>
 <h4 class='allposts_header'>December 2021</h4>
 <ul>
+<li><a href="./gru-devlog-21---olibc.html">GRU Devlog 21 - olibc</a> &mdash; December 19, 2021</li>
 <li><a href="./gru-devlog-20---olibc.html">GRU Devlog 20 - olibc</a> &mdash; December 12, 2021</li>
 <li><a href="./gru-devlog-19---gic-and-several-libs.html">GRU Devlog 19 - gic and several libs</a> &mdash; December 05, 2021</li>
 </ul>
diff --git a/blog/all_tags.html b/blog/all_tags.html
index c346586..d128d0e 100644
--- a/blog/all_tags.html
+++ b/blog/all_tags.html
@@ -26,21 +26,21 @@
 <li><a href="tag_girclib.html">girclib</a> &mdash; 1 post</li>
 <li><a href="tag_gros.html">gros</a> &mdash; 2 posts</li>
 <li><a href="tag_grsh.html">grsh</a> &mdash; 2 posts</li>
-<li><a href="tag_gru.html">gru</a> &mdash; 20 posts</li>
+<li><a href="tag_gru.html">gru</a> &mdash; 21 posts</li>
 <li><a href="tag_grutils.html">grutils</a> &mdash; 2 posts</li>
 <li><a href="tag_gxt.html">gxt</a> &mdash; 2 posts</li>
 <li><a href="tag_hexutils.html">hexutils</a> &mdash; 1 post</li>
 <li><a href="tag_irc.html">irc</a> &mdash; 1 post</li>
 <li><a href="tag_jitsi.html">jitsi</a> &mdash; 1 post</li>
 <li><a href="tag_libera.html">libera</a> &mdash; 1 post</li>
-<li><a href="tag_liblinux.html">liblinux</a> &mdash; 2 posts</li>
+<li><a href="tag_liblinux.html">liblinux</a> &mdash; 3 posts</li>
 <li><a href="tag_libs.html">libs</a> &mdash; 1 post</li>
 <li><a href="tag_license.html">license</a> &mdash; 1 post</li>
 <li><a href="tag_lobste.rs.html">lobste.rs</a> &mdash; 1 post</li>
 <li><a href="tag_lolcpu.html">lolcpu</a> &mdash; 1 post</li>
 <li><a href="tag_meeting.html">meeting</a> &mdash; 1 post</li>
 <li><a href="tag_ocpu.html">ocpu</a> &mdash; 4 posts</li>
-<li><a href="tag_olibc.html">olibc</a> &mdash; 2 posts</li>
+<li><a href="tag_olibc.html">olibc</a> &mdash; 3 posts</li>
 <li><a href="tag_orcc.html">orcc</a> &mdash; 1 post</li>
 <li><a href="tag_org-mode.html">org-mode</a> &mdash; 2 posts</li>
 <li><a href="tag_org-roam.html">org-roam</a> &mdash; 1 post</li>
diff --git a/blog/bb-backup.sh b/blog/bb-backup.sh
deleted file mode 100755
index e253d1f..0000000
--- a/blog/bb-backup.sh
+++ /dev/null
@@ -1,1174 +0,0 @@
-#!/usr/bin/env bash
-
-# BashBlog, a simple blog system written in a single bash script
-# (C) Carlos Fenollosa <carlos.fenollosa@gmail.com>, 2011-2016 and contributors
-# https://github.com/carlesfe/bashblog/contributors
-# Check out README.md for more details
-
-# Global variables
-# It is recommended to perform a 'rebuild' after changing any of this in the code
-
-# Config file. Any settings "key=value" written there will override the
-# global_variables defaults. Useful to avoid editing bb.sh and having to deal
-# with merges in VCS
-global_config=".config"
-
-# This function will load all the variables defined here. They might be overridden
-# by the 'global_config' file contents
-global_variables() {
-	global_software_name="bashblog"
-	global_software_version="2.8"
-
-	# Blog title
-	global_title="my tildelog"
-	# The typical subtitle for each blog
-	global_description="a blog about tildes"
-	# The public base URL for this blog
-	global_url="https://gru.codeberg.page/blog"
-
-	# Your name
-	global_author="g1n"
-	# You can use twitter or facebook or anything for global_author_url
-	global_author_url="https://gru.codeberg.page/"
-	# Your email
-	global_email="g1n@ttm.sh"
-
-	# CC by-nc-nd is a good starting point, you can change this to "&copy;" for Copyright
-	global_license="CC by-nc-nd"
-
-
-	# Leave this empty (i.e. "") if you don't want to use feedburner, 
-	# or change it to your own URL
-	global_feedburner=""
-
-	# Change this to your username if you want to use twitter for comments
-	global_twitter_username=""
-	# Set this to false for a Twitter button with share count. The cookieless version
-	# is just a link.
-	global_twitter_cookieless="true"
-	# Default search page, where tweets more than a week old are hidden
-	global_twitter_search="twitter"
-
-	# Blog generated files
-	# index page of blog (it is usually good to use "index.html" here)
-	index_file="index.html"
-	number_of_index_articles="10"
-	# global archive
-	archive_index="all_posts.html"
-	tags_index="all_tags.html"
-
-	# ignore gophermap file
-	gophermap="gophermap"
-
-	# ignore gemini generation script and gemini index
-	gemini_index="index.gmi"
-
-	# Non blogpost files. Bashblog will ignore these. Useful for static pages and custom content
-	# Add them as a bash array, e.g. non_blogpost_files=("news.html" "test.html")
-	non_blogpost_files=()
-
-	# feed file (rss in this case)
-	blog_feed="feed.rss"
-	number_of_feed_articles="50"
-	# "cut" blog entry when putting it to index page. Leave blank for full articles in front page
-	# i.e. include only up to first '<hr>', or '----' in markdown
-	cut_do="cut"
-	# When cutting, cut also tags? If "no", tags will appear in index page for cut articles
-	cut_tags="yes"
-	# Regexp matching the HTML line where to do the cut
-	# note that slash is regexp separator so you need to prepend it with backslash
-	cut_line='<hr ?\/?>'
-	# save markdown file when posting with "bb post -m". Leave blank to discard it.
-	save_markdown="yes"
-	# prefix for tags/categories files
-	# please make sure that no other html file starts with this prefix
-	prefix_tags="tag_"
-	# personalized header and footer (only if you know what you're doing)
-	# DO NOT name them .header.html, .footer.html or they will be overwritten
-	# leave blank to generate them, recommended
-	header_file=""
-	footer_file=""
-	# extra content to add just after we open the <body> tag
-	# and before the actual blog content
-	body_begin_file=""
-	# extra content to add just before we cloese <body tag (just before
-	# </body>)
-	body_end_file=""
-	# CSS files to include on every page, f.ex. css_include=('main.css' 'blog.css')
-	# leave empty to use generated
-	css_include=()
-	# HTML files to exclude from index, f.ex. post_exclude=('imprint.html 'aboutme.html')
-	html_exclude=()
-
-	# Localization and i18n
-	# "Comments?" (used in twitter link after every post)
-	template_comments="comments?"
-	# "Read more..." (link under cut article on index page)
-	template_read_more="read more..."
-	# "View more posts" (used on bottom of index page as link to archive)
-	template_archive="archive"
-	# "All posts" (title of archive page)
-	template_archive_title="all posts"
-	# "All tags"
-	template_tags_title="all tags"
-	# "posts" (on "All tags" page, text at the end of each tag line, like "2. Music - 15 posts")
-	template_tags_posts="posts"
-	template_tags_posts_2_4="posts"  # Some slavic languages use a different plural form for 2-4 items
-	template_tags_posts_singular="post"
-	# "Posts tagged" (text on a title of a page with index of one tag, like "My Blog - Posts tagged "Music"")
-	template_tag_title="posts tagged"
-	# "Tags:" (beginning of line in HTML file with list of all tags for this article)
-	template_tags_line_header="tags:"
-	# "Back to the index page" (used on archive page, it is link to blog index)
-	template_archive_index_page="back home"
-	# "Subscribe" (used on bottom of index page, it is link to RSS feed)
-	template_subscribe="rss"
-	# "Subscribe to this page..." (used as text for browser feed button that is embedded to html)
-	template_subscribe_browser_button="subscribe to this page..."
-	# "Tweet" (used as twitter text button for posting to twitter)
-	template_twitter_button="tweet"
-	template_twitter_comment="&lt;type your comment here but please leave the URL so that other people can follow the comments&gt;"
-	
-	# The locale to use for the dates displayed on screen
-	date_format="%B %d, %Y"
-	date_locale="C"
-	date_inpost="bashblog_timestamp"
-	# Don't change these dates
-	date_format_full="%a, %d %b %Y %H:%M:%S %z"
-	date_format_timestamp="%Y%m%d%H%M.%S"
-	date_allposts_header="%B %Y"
-
-	# Perform the post title -> filename conversion
-	# Experts only. You may need to tune the locales too
-	# Leave empty for no conversion, which is not recommended
-	# This default filter respects backwards compatibility
-	convert_filename="iconv -f utf-8 -t ascii//translit | sed 's/^-*//' | tr [:upper:] [:lower:] | tr ' ' '-' | tr -dc '[:alnum:]-'"
-
-	# URL where you can view the post while it's being edited
-	# same as global_url by default
-	# You can change it to path on your computer, if you write posts locally
-	# before copying them to the server
-	preview_url=""
-
-	# Markdown location. Trying to autodetect by default.
-	# The invocation must support the signature 'markdown_bin in.md > out.html'
-	[[ -f Markdown.pl ]] && markdown_bin=./Markdown.pl || markdown_bin=$(which Markdown.pl 2>/dev/null || which markdown 2>/dev/null)
-}
-
-# Check for the validity of some variables
-# DO NOT EDIT THIS FUNCTION unless you know what you're doing
-global_variables_check() {
-	[[ $header_file == .header.html ]] &&
-		echo "Please check your configuration. '.header.html' is not a valid value for the setting 'header_file'" &&
-		exit
-	[[ $footer_file == .footer.html ]] &&
-		echo "Please check your configuration. '.footer.html' is not a valid value for the setting 'footer_file'" &&
-		exit
-}
-
-
-# Test if the markdown script is working correctly
-test_markdown() {
-	[[ -n $markdown_bin ]] &&
-		(
-		[[ $("$markdown_bin" <<< $'line 1\n\nline 2') == $'<p>line 1</p>\n\n<p>line 2</p>' ]] ||
-		[[ $("$markdown_bin" <<< $'line 1\n\nline 2') == $'<p>line 1</p>\n<p>line 2</p>' ]]
-		)
-}
-
-
-# Parse a Markdown file into HTML and return the generated file
-markdown() {
-	out=${1%.md}.html
-	while [[ -f $out ]]; do out=${out%.html}.$RANDOM.html; done
-	$markdown_bin "$1" > "$out"
-	echo "$out"
-}
-
-# Reads HTML file from stdin, prints its content to stdout
-# $1    where to start ("text" or "entry")
-# $2    where to stop ("text" or "entry")
-# $3    "cut" to remove text from <hr /> to <!-- text end -->
-#       note that this does not remove <hr /> line itself,
-#       so you can see if text was cut or not
-get_html_file_content() {
-	awk "/<!-- $1 begin -->/, /<!-- $2 end -->/{
-		if (!/<!-- $1 begin -->/ && !/<!-- $2 end -->/) print
-		if (\"$3\" == \"cut\" && /$cut_line/){
-			if (\"$2\" == \"text\") exit # no need to read further
-			while (getline > 0 && !/<!-- text end -->/) {
-				if (\"$cut_tags\" == \"no\" && /^<p>$template_tags_line_header/ ) print 
-			}
-		}
-	}"
-}
-
-# Edit an existing, published .html file while keeping its original timestamp
-# Please note that this function does not automatically republish anything, as
-# it is usually called from 'main'.
-#
-# Note that it edits HTML file, even if you wrote the post as markdown originally
-# Note that if you edit title then filename might also change
-#
-# $1 	the file to edit
-# $2	(optional) edit mode:
-#	"keep" to keep old filename
-#	"full" to edit full HTML, and not only text part (keeps old filename)
-#	leave empty for default behavior (edit only text part and change name)
-edit() {
-	[[ ! -f "${1%%.*}.html" ]] && echo "Can't edit post "${1%%.*}.html", did you mean to use \"bb.sh post <draft_file>\"?" && exit -1
-	# Original post timestamp
-	edit_timestamp=$(LC_ALL=C date -r "${1%%.*}.html" +"$date_format_full" )
-	touch_timestamp=$(LC_ALL=C date -r "${1%%.*}.html" +"$date_format_timestamp")
-	tags_before=$(tags_in_post "${1%%.*}.html")
-	if [[ $2 == full ]]; then
-		$EDITOR "$1"
-		filename=$1
-	else
-		if [[ ${1##*.} == md ]]; then
-			test_markdown
-			if (($? != 0)); then
-				echo "Markdown is not working, please edit HTML file directly."
-				exit
-			fi
-			# editing markdown file
-			$EDITOR "$1"
-			TMPFILE=$(markdown "$1")
-			filename=${1%%.*}.html
-		else
-			# Create the content file
-			TMPFILE=$(basename "$1").$RANDOM.html
-			# Title
-			get_post_title "$1" > "$TMPFILE"
-			# Post text with plaintext tags
-			get_html_file_content 'text' 'text' <"$1" | sed "/^<p>$template_tags_line_header/s|<a href='$prefix_tags\([^']*\).html'>\\1</a>|\\1|g" >> "$TMPFILE"
-			$EDITOR "$TMPFILE"
-			filename=$1
-		fi
-		rm "$filename"
-		if [[ $2 == keep ]]; then
-			parse_file "$TMPFILE" "$edit_timestamp" "$filename"
-		else
-			parse_file "$TMPFILE" "$edit_timestamp" # this command sets $filename as the html processed file
-			[[ ${1##*.} == md ]] && mv "$1" "${filename%%.*}.md" 2>/dev/null
-		fi
-		rm "$TMPFILE"
-	fi
-	touch -t "$touch_timestamp" "$filename"
-	touch -t "$touch_timestamp" "$1"
-	chmod 644 "$filename"
-	echo "Posted $filename"
-	tags_after=$(tags_in_post "$filename")
-	relevant_tags=$(echo "$tags_before $tags_after" | tr ',' ' ' | tr ' ' '\n' | sort -u | tr '\n' ' ')
-	if [[ ! -z $relevant_tags ]]; then
-		relevant_posts="$(posts_with_tags $relevant_tags) $filename"
-		rebuild_tags "$relevant_posts" "$relevant_tags"
-	fi
-}
-
-# Create a Twitter summary (twitter "card") for the post
-#
-# $1 the post file
-# $2 the title
-twitter_card() {
-	[[ -z $global_twitter_username ]] && return
-	
-	echo "<meta name='twitter:card' content='summary'>"
-	echo "<meta name='twitter:site' content='@$global_twitter_username'>"
-	echo "<meta name='twitter:title' content='$2'>" # Twitter truncates at 70 char
-	description=$(grep -v "^<p>$template_tags_line_header" "$1" | sed -e 's/<[^>]*>//g' | head -c 250 | tr '\n' ' ' | sed "s/\"/'/g") 
-	echo "<meta name='twitter:description' content=\"$description\">"
-	image=$(sed -n 's/.*<img.*src="\([^"]*\)".*/\1/p' "$1" | head -n 1) # First image is fine
-	[[ -z $image ]] && return
-	[[ $image =~ ^https?:// ]] || image=$global_url/$image # Check that URL is absolute
-	echo "<meta name='twitter:image' content='$image'>"
-}
-
-# Adds the code needed by the twitter button
-#
-# $1 the post URL
-twitter() {
-	[[ -z $global_twitter_username ]] && return
-
-	if [[ $global_twitter_cookieless == true ]]; then 
-		id=$RANDOM
-
-		search_engine="https://twitter.com/search?q="
-
-		echo "<p id='twitter'><a href='http://twitter.com/intent/tweet?url=$1&text=$template_twitter_comment&via=$global_twitter_username'>$template_comments $template_twitter_button</a> "
-		echo "<a href='$search_engine""$1'><span id='count-$id'></span></a>&nbsp;</p>"
-		return;
-	else 
-		echo "<p id='twitter'>$template_comments&nbsp;"; 
-	fi
-
-	echo "<a href=\"https://twitter.com/share\" class=\"twitter-share-button\" data-text=\"$template_twitter_comment\" data-url=\"$1\""
-	echo " data-via=\"$global_twitter_username\""
-	echo ">$template_twitter_button</a>	<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=\"//platform.twitter.com/widgets.js\";fjs.parentNode.insertBefore(js,fjs);}}(document,\"script\",\"twitter-wjs\");</script>"
-	echo "</p>"
-}
-
-# Check if the file is a 'boilerplate' (i.e. not a post)
-# The return values are designed to be used like this inside a loop:
-# is_boilerplate_file <file> && continue
-#
-# $1 the file
-#
-# Return 0 (bash return value 'true') if the input file is an index, feed, etc
-# or 1 (bash return value 'false') if it is a blogpost
-is_boilerplate_file() {
-	name=${1#./}
-	# First check against user-defined non-blogpost pages
-	for item in "${non_blogpost_files[@]}"; do
-		[[ "$name" == "$item" ]] && return 0
-	done
-
-	case $name in
-	( "$index_file" | "$archive_index" | "$gophermap" | "$gemini_index" | "$tags_index" | "$footer_file" | "$header_file" | "$global_analytics_file" | "$prefix_tags"* )
-		return 0 ;;
-	( * ) # Check for excluded
-		for excl in "${html_exclude[@]}"; do
-			[[ $name == "$excl" ]] && return 0
-		done
-		return 1 ;;
-	esac
-}
-
-# Adds all the bells and whistles to format the html page
-# Every blog post is marked with a <!-- entry begin --> and <!-- entry end -->
-# which is parsed afterwards in the other functions. There is also a marker
-# <!-- text begin --> to determine just the beginning of the text body of the post
-#
-# $1     a file with the body of the content
-# $2     the output file
-# $3     "yes" if we want to generate the index.html,
-#        "no" to insert new blog posts
-# $4     title for the html header
-# $5     original blog timestamp
-# $6     post author
-create_html_page() {
-	content=$1
-	filename=$2
-	index=$3
-	title=$4
-	timestamp=$5
-	author=$6
-
-	# Create the actual blog post
-	# html, head
-	{
-		cat ".header.html"
-		echo "<title>$title</title>"
-		twitter_card "$content" "$title"
-		echo "</head><body>"
-		# stuff to add before the actual body content
-		[[ -n $body_begin_file ]] && cat "$body_begin_file"
-		# body divs
-		echo '<div id="divbodyholder">'
-		echo '<div class="headerholder"><div class="header">'
-		# blog title
-		echo '<div id="title">'
-		cat .title.html
-		echo '</div></div></div>' # title, header, headerholder
-		echo '<div id="divbody"><div class="content">'
-
-		file_url=${filename#./}
-		file_url=${file_url%.rebuilt} # Get the correct URL when rebuilding
-		# one blog entry
-		if [[ $index == no ]]; then
-			echo '<!-- entry begin -->' # marks the beginning of the whole post
-			echo "<h3><a class=\"ablack\" href=\"$file_url\">"
-			# remove possible <p>'s on the title because of markdown conversion
-			title=${title//<p>/}
-			title=${title//<\/p>/}
-			echo "$title"
-			echo '</a></h3>'
-			if [[ -z $timestamp ]]; then
-				echo "<!-- $date_inpost: #$(LC_ALL=$date_locale date +"$date_format_timestamp")# -->"
-			else
-				echo "<!-- $date_inpost: #$(LC_ALL=$date_locale date +"$date_format_timestamp" --date="$timestamp")# -->"
-			fi
-			if [[ -z $timestamp ]]; then
-				echo -n "<div class=\"subtitle\">$(LC_ALL=$date_locale date +"$date_format")"
-			else
-				echo -n "<div class=\"subtitle\">$(LC_ALL=$date_locale date +"$date_format" --date="$timestamp")"
-			fi
-			[[ -n $author ]] && echo -e " &mdash; \n$author"
-			echo "</div>"
-			echo '<!-- text begin -->' # This marks the text body, after the title, date...
-		fi
-		cat "$content" # Actual content
-		if [[ $index == no ]]; then
-			echo -e '\n<!-- text end -->'
-
-			twitter "$global_url/$file_url"
-
-			echo '<!-- entry end -->' # absolute end of the post
-		fi
-
-		echo '</div>' # content
-
-		# page footer
-		cat .footer.html
-		# close divs
-		echo '</div></div>' # divbody and divbodyholder 
-		[[ -n $body_end_file ]] && cat "$body_end_file"
-		echo '</body></html>'
-	} > "$filename"
-}
-
-# Parse the plain text file into an html file
-#
-# $1    source file name
-# $2    (optional) timestamp for the file
-# $3    (optional) destination file name
-# note that although timestamp is optional, something must be provided at its
-# place if destination file name is provided, i.e:
-# parse_file source.txt "" destination.html
-parse_file() {
-	# Read for the title and check that the filename is ok
-	title=""
-	while IFS='' read -r line; do
-		if [[ -z $title ]]; then
-			# remove extra <p> and </p> added by markdown
-			title=$(echo "$line" | sed 's/<\/*p>//g')
-			if [[ -n $3 ]]; then
-				filename=$3
-			else
-				filename=$title
-				[[ -n $convert_filename ]] &&
-					filename=$(echo "$title" | eval "$convert_filename")
-				[[ -n $filename ]] || 
-					filename=$RANDOM # don't allow empty filenames
-
-				filename=$filename.html
-
-				# Check for duplicate file names
-				while [[ -f $filename ]]; do
-					filename=${filename%.html}$RANDOM.html
-				done
-			fi
-			content=$filename.tmp
-		# Parse possible tags
-		elif [[ $line == "<p>$template_tags_line_header"* ]]; then
-			tags=$(echo "$line" | cut -d ":" -f 2- | sed -e 's/<\/p>//g' -e 's/^ *//' -e 's/ *$//' -e 's/, /,/g')
-			IFS=, read -r -a array <<< "$tags"
-
-			echo -n "<p>$template_tags_line_header " >> "$content"
-			for item in "${array[@]}"; do
-				echo -n "<a href='$prefix_tags$item.html'>$item</a>, "
-			done | sed 's/, $/<\/p>/g' >> "$content"
-		else
-			echo "$line" >> "$content"
-		fi
-	done < "$1"
-
-	# Create the actual html page
-	create_html_page "$content" "$filename" no "$title" "$2" "$global_author"
-	rm "$content"
-}
-
-# Manages the creation of the text file and the parsing to html file
-# also the drafts
-write_entry() {
-	test_markdown && fmt=md || fmt=html
-	f=$2
-	[[ $2 == -html ]] && fmt=html && f=$3
-
-	if [[ -n $f ]]; then
-		TMPFILE=$f
-		if [[ ! -f $TMPFILE ]]; then
-			echo "The file doesn't exist"
-			delete_includes
-			exit
-		fi
-		# guess format from TMPFILE
-		extension=${TMPFILE##*.}
-		[[ $extension == md || $extension == html ]] && fmt=$extension
-		# but let user override it (`bb.sh post -html file.md`)
-		[[ $2 == -html ]] && fmt=html
-		# Test if Markdown is working before re-posting a .md file
-		if [[ $extension == md ]]; then
-			test_markdown
-			if (($? != 0)); then
-				echo "Markdown is not working, please edit HTML file directly."
-				exit
-			fi
-		fi
-	else
-		TMPFILE=.entry-$RANDOM.$fmt
-		echo -e "Title on this line\n" >> "$TMPFILE"
-
-		[[ $fmt == html ]] && cat << EOF >> "$TMPFILE"
-<p>The rest of the text file is an <b>html</b> blog post. The process will continue as soon
-as you exit your editor.</p>
-
-<p>$template_tags_line_header keep-this-tag-format, tags-are-optional, example</p>
-EOF
-		[[ $fmt == md ]] && cat << EOF >> "$TMPFILE"
-The rest of the text file is a **Markdown** blog post. The process will continue
-as soon as you exit your editor.
-
-$template_tags_line_header keep-this-tag-format, tags-are-optional, beware-with-underscores-in-markdown, example
-EOF
-	fi
-	chmod 600 "$TMPFILE"
-
-	post_status="E"
-	filename=""
-	while [[ $post_status != "p" && $post_status != "P" ]]; do
-		[[ -n $filename ]] && rm "$filename" # Delete the generated html file, if any
-		$EDITOR "$TMPFILE"
-		if [[ $fmt == md ]]; then
-			html_from_md=$(markdown "$TMPFILE")
-			parse_file "$html_from_md"
-			rm "$html_from_md"
-		else
-			parse_file "$TMPFILE" # this command sets $filename as the html processed file
-		fi
-
-		chmod 644 "$filename"
-		[[ -n $preview_url ]] || preview_url=$global_url
-		echo "To preview the entry, open $preview_url/$filename in your browser"
-
-		echo -n "[P]ost this entry, [E]dit again, [D]raft for later? (p/E/d) "
-		read -r post_status
-		if [[ $post_status == d || $post_status == D ]]; then
-			mkdir -p "drafts/"
-			chmod 700 "drafts/"
-
-			title=$(head -n 1 $TMPFILE)
-			[[ -n $convert_filename ]] && title=$(echo "$title" | eval "$convert_filename")
-			[[ -n $title ]] || title=$RANDOM
-
-			draft=drafts/$title.$fmt
-			mv "$TMPFILE" "$draft"
-			chmod 600 "$draft"
-			rm "$filename"
-			delete_includes
-			echo "Saved your draft as '$draft'"
-			exit
-		fi
-	done
-
-	if [[ $fmt == md && -n $save_markdown ]]; then
-		mv "$TMPFILE" "${filename%%.*}.md"
-	else
-		rm "$TMPFILE"
-	fi
-	chmod 644 "$filename"
-	echo "Posted $filename"
-	relevant_tags=$(tags_in_post $filename)
-	if [[ -n $relevant_tags ]]; then
-		relevant_posts="$(posts_with_tags $relevant_tags) $filename"
-		rebuild_tags "$relevant_posts" "$relevant_tags"
-	fi
-}
-
-# Create an index page with all the posts
-all_posts() {
-	echo -n "Creating an index page with all the posts "
-	contentfile=$archive_index.$RANDOM
-	while [[ -f $contentfile ]]; do
-		contentfile=$archive_index.$RANDOM
-	done
-
-	{
-		echo "<h3>$template_archive_title</h3>"
-		prev_month=""
-		while IFS='' read -r i; do
-			is_boilerplate_file "$i" && continue
-			echo -n "." 1>&3
-			# Month headers
-			month=$(LC_ALL=$date_locale date -r "$i" +"$date_allposts_header")
-			if [[ $month != "$prev_month" ]]; then
-				[[ -n $prev_month ]] && echo "</ul>"  # Don't close ul before first header
-				echo "<h4 class='allposts_header'>$month</h4>"
-				echo "<ul>"
-				prev_month=$month
-			fi
-			# Title
-			title=$(get_post_title "$i")
-			echo -n "<li><a href=\"$i\">$title</a> &mdash;"
-			# Date
-			date=$(LC_ALL=$date_locale date -r "$i" +"$date_format")
-			echo " $date</li>"
-		done < <(ls -t ./*.html)
-		echo "" 1>&3
-		echo "</ul>"
-		echo "<div id=\"all_posts\"><a href=\"./$index_file\">$template_archive_index_page</a></div>"
-	} 3>&1 >"$contentfile"
-
-	create_html_page "$contentfile" "$archive_index.tmp" yes "$global_title &mdash; $template_archive_title" "$global_author"
-	mv "$archive_index.tmp" "$archive_index"
-	chmod 644 "$archive_index"
-	rm "$contentfile"
-}
-
-# Create an index page with all the tags
-all_tags() {
-	echo -n "Creating an index page with all the tags "
-	contentfile=$tags_index.$RANDOM
-	while [[ -f $contentfile ]]; do
-		contentfile=$tags_index.$RANDOM
-	done
-
-	{
-		echo "<h3>$template_tags_title</h3>"
-		echo "<ul>"
-		for i in $prefix_tags*.html; do
-			[[ -f "$i" ]] || break
-			echo -n "." 1>&3
-			nposts=$(grep -c "<\!-- text begin -->" "$i")
-			tagname=${i#"$prefix_tags"}
-			tagname=${tagname%.html}
-			case $nposts in
-				1) word=$template_tags_posts_singular;;
-				2|3|4) word=$template_tags_posts_2_4;;
-				*) word=$template_tags_posts;;
-			esac
-			echo "<li><a href=\"$i\">$tagname</a> &mdash; $nposts $word</li>"
-		done
-		echo "" 1>&3
-		echo "</ul>"
-		echo "<div id=\"all_posts\"><a href=\"./$index_file\">$template_archive_index_page</a></div>"
-	} 3>&1 > "$contentfile"
-
-	create_html_page "$contentfile" "$tags_index.tmp" yes "$global_title &mdash; $template_tags_title" "$global_author"
-	mv "$tags_index.tmp" "$tags_index"
-	chmod 644 "$tags_index"
-	rm "$contentfile"
-}
-
-# Generate the index.html with the content of the latest posts
-rebuild_index() {
-	echo -n "Rebuilding the index "
-	newindexfile=$index_file.$RANDOM
-	contentfile=$newindexfile.content
-	while [[ -f $newindexfile ]]; do 
-		newindexfile=$index_file.$RANDOM
-		contentfile=$newindexfile.content
-	done
-
-	# Create the content file
-	{
-		n=0
-		while IFS='' read -r i; do
-			is_boilerplate_file "$i" && continue;
-			if ((n >= number_of_index_articles)); then break; fi
-			if [[ -n $cut_do ]]; then
-				get_html_file_content 'entry' 'entry' 'cut' <"$i" | awk "/$cut_line/ { print \"<p class=\\\"readmore\\\"><a href=\\\"$i\\\">$template_read_more</a></p>\" ; next } 1"
-			else
-				get_html_file_content 'entry' 'entry' <"$i"
-			fi
-			echo -n "." 1>&3
-			n=$(( n + 1 ))
-		done < <(ls -t ./*.html) # sort by date, newest first
-
-		feed=$blog_feed
-		if [[ -n $global_feedburner ]]; then feed=$global_feedburner; fi
-		echo "<div id=\"all_posts\"><a href=\"$archive_index\">$template_archive</a> &mdash; <a href=\"$tags_index\">$template_tags_title</a> &mdash; <a href=\"$feed\">$template_subscribe</a></div>"
-	} 3>&1 >"$contentfile"
-
-	echo ""
-
-	create_html_page "$contentfile" "$newindexfile" yes "$global_title" "$global_author"
-	rm "$contentfile"
-	mv "$newindexfile" "$index_file"
-	chmod 644 "$index_file"
-}
-
-# Finds all tags referenced in one post.
-# Accepts either filename as first argument, or post content at stdin
-# Prints one line with space-separated tags to stdout
-tags_in_post() {
-	sed -n "/^<p>$template_tags_line_header/{s/^<p>$template_tags_line_header//;s/<[^>]*>//g;s/[ ,]\+/ /g;p;}" "$1" | tr ', ' ' '
-}
-
-# Finds all posts referenced in a number of tags.
-# Arguments are tags
-# Prints one line with space-separated tags to stdout
-posts_with_tags() {
-	(($# < 1)) && return
-	set -- "${@/#/$prefix_tags}"
-	set -- "${@/%/.html}"
-	sed -n '/^<h3><a class="ablack" href="[^"]*">/{s/.*href="\([^"]*\)">.*/\1/;p;}' "$@" 2> /dev/null
-}
-
-# Rebuilds tag_*.html files
-# if no arguments given, rebuilds all of them
-# if arguments given, they should have this format:
-# "FILE1 [FILE2 [...]]" "TAG1 [TAG2 [...]]"
-# where FILEn are files with posts which should be used for rebuilding tags,
-# and TAGn are names of tags which should be rebuilt.
-# example:
-# rebuild_tags "one_post.html another_article.html" "example-tag another-tag"
-# mind the quotes!
-rebuild_tags() {
-	if (($# < 2)); then
-		# will process all files and tags
-		files=$(ls -t ./*.html)
-		all_tags=yes
-	else
-		# will process only given files and tags
-		files=$(printf '%s\n' $1 | sort -u)
-		files=$(ls -t $files)
-		tags=$2
-	fi
-	echo -n "Rebuilding tag pages "
-	n=0
-	if [[ -n $all_tags ]]; then
-		rm ./"$prefix_tags"*.html &> /dev/null
-	else
-		for i in $tags; do
-			rm "./$prefix_tags$i.html" &> /dev/null
-		done
-	fi
-	# First we will process all files and create temporal tag files
-	# with just the content of the posts
-	tmpfile=tmp.$RANDOM
-	while [[ -f $tmpfile ]]; do tmpfile=tmp.$RANDOM; done
-	while IFS='' read -r i; do
-		is_boilerplate_file "$i" && continue;
-		echo -n "."
-		if [[ -n $cut_do ]]; then
-			get_html_file_content 'entry' 'entry' 'cut' <"$i" | awk "/$cut_line/ { print \"<p class=\\\"readmore\\\"><a href=\\\"$i\\\">$template_read_more</a></p>\" ; next } 1"
-		else
-			get_html_file_content 'entry' 'entry' <"$i"
-		fi >"$tmpfile"
-		for tag in $(tags_in_post "$i"); do
-			if [[ -n $all_tags || " $tags " == *" $tag "* ]]; then
-				cat "$tmpfile" >> "$prefix_tags$tag".tmp.html
-			fi
-		done
-	done <<< "$files"
-	rm "$tmpfile"
-	# Now generate the tag files with headers, footers, etc
-	while IFS='' read -r i; do
-		tagname=${i#./"$prefix_tags"}
-		tagname=${tagname%.tmp.html}
-		create_html_page "$i" "$prefix_tags$tagname.html" yes "$global_title &mdash; $template_tag_title \"$tagname\"" "$global_author"
-		rm "$i"
-	done < <(ls -t ./"$prefix_tags"*.tmp.html 2>/dev/null)
-	echo
-}
-
-# Return the post title
-#
-# $1 the html file
-get_post_title() {
-	awk '/<h3><a class="ablack" href=".+">/, /<\/a><\/h3>/{if (!/<h3><a class="ablack" href=".+">/ && !/<\/a><\/h3>/) print}' "$1"
-}
-
-# Return the post author
-#
-# $1 the html file
-get_post_author() { 
-	awk '/<div class="subtitle">.+/, /<!-- text begin -->/{if (!/<div class="subtitle">.+/ && !/<!-- text begin -->/) print}' "$1" | sed 's/<\/div>//g'
-}
-
-# Displays a list of the tags
-#
-# $2 if "-n", tags will be sorted by number of posts
-list_tags() {
-	if [[ $2 == -n ]]; then do_sort=1; else do_sort=0; fi
-
-	ls ./$prefix_tags*.html &> /dev/null
-	(($? != 0)) && echo "No posts yet. Use 'bb.sh post' to create one" && return
-
-	lines=""
-	for i in $prefix_tags*.html; do
-		[[ -f "$i" ]] || break
-		nposts=$(grep -c "<\!-- text begin -->" "$i")
-		tagname=${i#"$prefix_tags"}
-		tagname=${tagname#.html}
-		((nposts > 1)) && word=$template_tags_posts || word=$template_tags_posts_singular
-		line="$tagname # $nposts # $word"
-		lines+=$line\\n
-	done
-
-	if (( do_sort == 1 )); then
-		echo -e "$lines" | column -t -s "#" | sort -nrk 2
-	else
-		echo -e "$lines" | column -t -s "#" 
-	fi
-}
-
-# Displays a list of the posts
-list_posts() {
-	ls ./*.html &> /dev/null
-	(($? != 0)) && echo "No posts yet. Use 'bb.sh post' to create one" && return
-
-	lines=""
-	n=1
-	while IFS='' read -r i; do
-		is_boilerplate_file "$i" && continue
-		line="$n # $(get_post_title "$i") # $(LC_ALL=$date_locale date -r "$i" +"$date_format")"
-		lines+=$line\\n
-		n=$(( n + 1 ))
-	done < <(ls -t ./*.html)
-
-	echo -e "$lines" | column -t -s "#"
-}
-
-# Generate the feed file
-make_rss() {
-	echo -n "Making RSS "
-
-	rssfile=$blog_feed.$RANDOM
-	while [[ -f $rssfile ]]; do rssfile=$blog_feed.$RANDOM; done
-
-	{
-		pubdate=$(LC_ALL=C date +"$date_format_full")
-		echo '<?xml version="1.0" encoding="UTF-8" ?>' 
-		echo '<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">' 
-		echo "<channel><title>$global_title</title><link>$global_url/$index_file</link>"
-		echo "<description>$global_description</description><language>en</language>"
-		echo "<lastBuildDate>$pubdate</lastBuildDate>"
-		echo "<pubDate>$pubdate</pubDate>"
-		echo "<atom:link href=\"$global_url/$blog_feed\" rel=\"self\" type=\"application/rss+xml\">"
-	
-		n=0
-		while IFS='' read -r i; do
-			is_boilerplate_file "$i" && continue
-			((n >= number_of_feed_articles)) && break # max 10 items
-			echo -n "." 1>&3
-			echo '<item><title>' 
-			get_post_title "$i"
-			echo '</title><description><![CDATA[' 
-			get_html_file_content 'text' 'entry' $cut_do <"$i"
-			echo "]]></description><link>$global_url/${i#./}</link>" 
-			echo "<guid>$global_url/$i</guid>" 
-			echo "<dc:creator>$(get_post_author "$i")</dc:creator>" 
-			echo "<pubDate>$(LC_ALL=C date -r "$i" +"$date_format_full")</pubDate></item>"
-	
-			n=$(( n + 1 ))
-		done < <(ls -t ./*.html)
-	
-		echo '</channel></rss>'
-	} 3>&1 >"$rssfile"
-	echo ""
-
-	mv "$rssfile" "$blog_feed"
-	chmod 644 "$blog_feed"
-}
-
-make_gophermap() {
-	if [ ! -d "${HOME}/public_gopher" ]; then
-		printf "Creating gopher hole\\n"
-		mkdir "${HOME}/public_gopher"
-	fi
-
-	if [ ! -L "${HOME}/public_gopher/blog" ]; then
-		ln -sf "${HOME}/public_html/blog/" "${HOME}/public_gopher/blog"
-	fi
-
-	if [ ! -f "${HOME}/public_gopher/blog/$gophermap" ]; then
-		cat <<- 'EOF' > $HOME/public_html/blog/$gophermap
-		#!/usr/bin/env sh
-		printf "my bashblog posts\n"
-		user=$(stat -c '%U' .)
-		for post in $(ls -t *.md); do
-			post=$(basename $post)
-			printf "0$post\t/~$user/blog/$post\ttilde.team\t70\n"
-		done
-		EOF
-		chmod +x $HOME/public_html/blog/$gophermap
-	fi
-	chmod 644 *.md
-}
-
-make_gemini() {
-	if [ ! -d "${HOME}/public_gemini" ]; then
-		printf "Creating ~/public_gemini\\n"
-		mkdir "${HOME}/public_gemini"
-	fi
-
-	if [ ! -L "${HOME}/public_gemini/blog" ]; then
-		ln -sf "${HOME}/public_html/blog/" "${HOME}/public_gemini/blog"
-	fi
-
-	if [ ! -f "${HOME}/public_gemini/blog/$gemini_index" ]; then
-		cat <<- 'EOF' > $HOME/public_gemini/blog/$gemini_index
-		#!/usr/bin/env sh
-		printf "20 text/gemini\r\n"
-		printf "my bashblog posts\r\n"
-		user=$(stat -c '%U' $0)
-		for post in $(ls -t /home/$user/public_gemini/blog/*.md); do
-			post=$(basename $post)
-			printf "=> /~$user/blog/$post $post\r\n"
-		done
-		EOF
-		chmod +x ${HOME}/public_gemini/blog/$gemini_index
-	fi
-}
-
-# generate headers, footers, etc
-create_includes() {
-	{
-		echo "<h1 class=\"nomargin\"><a class=\"ablack\" href=\"$global_url/$index_file\">$global_title</a></h1>" 
-		echo "<div id=\"description\">$global_description</div>"
-	} > ".title.html"
-
-	if [[ -f $header_file ]]; then cp "$header_file" .header.html
-	else {
-		echo '<!DOCTYPE html>'
-		echo '<html lang="en"><head>'
-		echo '<meta charset="UTF-8">'
-		echo '<meta name="viewport" content="width=device-width, initial-scale=1.0">'
-		printf '<link rel="stylesheet" href="%s" type="text/css">\n' "${css_include[@]}"
-		if [[ -z $global_feedburner ]]; then
-			echo "<link rel=\"alternate\" type=\"application/rss+xml\" title=\"$template_subscribe_browser_button\" href=\"$blog_feed\">"
-		else 
-			echo "<link rel=\"alternate\" type=\"application/rss+xml\" title=\"$template_subscribe_browser_button\" href=\"$global_feedburner\">"
-		fi
-		} > ".header.html"
-	fi
-
-	if [[ -f $footer_file ]]; then cp "$footer_file" .footer.html
-	else {
-		protected_mail=${global_email//@/&#64;}
-		protected_mail=${protected_mail//./&#46;}
-		echo "<div id=\"footer\">$global_license <a href=\"$global_author_url\">$global_author</a> &mdash; <a href=\"mailto:$protected_mail\">$protected_mail</a><br>"
-		echo 'generated with <a href="https://tildegit.org/team/bashblog">bashblog</a>, a single bash script to easily create blogs like this one</div>'
-		} >> ".footer.html"
-	fi
-}
-
-# Delete the temporarily generated include files
-delete_includes() {
-	rm ".title.html" ".footer.html" ".header.html"
-}
-
-# Create the css file from scratch
-create_css() {
-	# To avoid overwriting manual changes. However it is recommended that
-	# this function is modified if the user changes the blog.css file
-	(( ${#css_include[@]} > 0 )) && return || css_include=('main.css' 'blog.css')
-	if [[ ! -f blog.css ]]; then 
-		# blog.css directives will be loaded after main.css and thus will prevail
-		echo '#title{font-size: x-large;}
-		a.ablack{color:black !important;}
-		li{margin-bottom:8px;}
-		ul,ol{margin-left:24px;margin-right:24px;}
-		#all_posts{margin-top:24px;text-align:center;}
-		.subtitle{font-size:small;margin:12px 0px;}
-		.content p{margin-left:24px;margin-right:24px;}
-		h1{margin-bottom:12px !important;}
-		#description{font-size:large;margin-bottom:12px;}
-		h3{margin-top:42px;margin-bottom:8px;}
-		h4{margin-left:24px;margin-right:24px;}
-		img{max-width:100%;}
-		#twitter{line-height:20px;vertical-align:top;text-align:right;font-style:italic;color:#333;margin-top:24px;font-size:14px;}' > blog.css
-	fi
-
-	# If there is a style.css from the parent page (i.e. some landing page)
-	# then use it. This directive is here for compatibility with my own
-	# home page. Feel free to edit it out, though it doesn't hurt
-	if [[ -f ../style.css ]] && [[ ! -f main.css ]]; then
-		ln -s "../style.css" "main.css" 
-	elif [[ ! -f main.css ]]; then
-		echo 'body{font-family:Georgia,"Times New Roman",Times,serif;margin:0;padding:0;background-color:#F3F3F3;}
-		#divbodyholder{padding:5px;background-color:#DDD;width:100%;max-width:874px;margin:24px auto;}
-		#divbody{border:solid 1px #ccc;background-color:#fff;padding:0px 48px 24px 48px;top:0;}
-		.headerholder{background-color:#f9f9f9;border-top:solid 1px #ccc;border-left:solid 1px #ccc;border-right:solid 1px #ccc;}
-		.header{width:100%;max-width:800px;margin:0px auto;padding-top:24px;padding-bottom:8px;}
-		.content{margin-bottom:5%;}
-		.nomargin{margin:0;}
-		.description{margin-top:10px;border-top:solid 1px #666;padding:10px 0;}
-		h3{font-size:20pt;width:100%;font-weight:bold;margin-top:32px;margin-bottom:0;}
-		.clear{clear:both;}
-		#footer{padding-top:10px;border-top:solid 1px #666;color:#333333;text-align:center;font-size:small;font-family:"Courier New","Courier",monospace;}
-		a{text-decoration:none;color:#003366 !important;}
-		a:visited{text-decoration:none;color:#336699 !important;}
-		blockquote{background-color:#f9f9f9;border-left:solid 4px #e9e9e9;margin-left:12px;padding:12px 12px 12px 24px;}
-		blockquote img{margin:12px 0px;}
-		blockquote iframe{margin:12px 0px;}' > main.css
-	fi
-}
-
-# Regenerates all the single post entries, keeping the post content but modifying
-# the title, html structure, etc
-rebuild_all_entries() {
-	echo -n "Rebuilding all entries "
-
-	for i in ./*.html; do
-		is_boilerplate_file "$i" && continue;
-		contentfile=.tmp.$RANDOM
-		while [[ -f $contentfile ]]; do contentfile=.tmp.$RANDOM; done
-
-		echo -n "."
-		# Get the title and entry, and rebuild the html structure from scratch (divs, title, description...)
-		title=$(get_post_title "$i")
-
-		get_html_file_content 'text' 'text' <"$i" >> "$contentfile"
-
-		# Read timestamp from post, if present, and sync file timestamp
-		timestamp=$(awk '/<!-- '$date_inpost': .+ -->/ { print }' "$i" | cut -d '#' -f 2)
-		[[ -n $timestamp ]] && touch -t "$timestamp" "$i"
-		# Read timestamp from file in correct format for 'create_html_page'
-		timestamp=$(LC_ALL=C date -r "$i" +"$date_format_full")
-
-		create_html_page "$contentfile" "$i.rebuilt" no "$title" "$timestamp" "$(get_post_author "$i")"
-		# keep the original timestamp!
-		timestamp=$(LC_ALL=C date -r "$i" +"$date_format_timestamp")
-		mv "$i.rebuilt" "$i"
-		chmod 644 "$i"
-		touch -t "$timestamp" "$i"
-		rm "$contentfile"
-	done
-	echo ""
-}
-
-# Displays the help
-usage() {
-	echo "$global_software_name v$global_software_version"
-	echo "usage: bb command [filename]"
-	echo ""
-	echo "Commands:"
-	echo "    post [-html] [filename] insert a new blog post, or the filename of a draft to continue editing it"
-	echo "                            it tries to use markdown by default, and falls back to HTML if it's not available."
-	echo "                            use '-html' to override it and edit the post as HTML even when markdown is available"
-	echo "    edit [-n|-f] [filename] edit an already published .html or .md file. **NEVER** edit manually a published .html file,"
-	echo "                            always use this function as it keeps internal data and rebuilds the blog"
-	echo "                            use '-n' to give the file a new name, if title was changed"
-	echo "                            use '-f' to edit full html file, instead of just text part (also preserves name)"
-	echo "    delete [filename]       deletes the post and rebuilds the blog"
-	echo "    rebuild                 regenerates all the pages and posts, preserving the content of the entries"
-	echo "    reset                   deletes everything except this script. Use with a lot of caution and back up first!"
-	echo "    list                    list all posts"
-	echo "    tags [-n]               list all tags in alphabetical order"
-	echo "                            use '-n' to sort list by number of posts"
-	echo ""
-	echo "for more information please see https://tilde.team/wiki/?page=tildeblogs"
-	echo "source here: https://tildegit.org/team/bashblog"
-}
-
-# Delete all generated content, leaving only this script
-reset() {
-	echo "Are you sure you want to delete all blog entries? Please write \"Yes, I am!\" "
-	read -r line
-	if [[ $line == "Yes, I am!" ]]; then
-		rm .*.html ./*.html ./*.css ./*.rss &> /dev/null
-		echo
-		echo "Deleted all posts, stylesheets and feeds."
-		echo "Kept your old '.backup.tar.gz' just in case, please delete it manually if needed."
-	else
-		echo "Phew! You dodged a bullet there. Nothing was modified."
-	fi
-}
-
-# Detects if GNU date is installed
-date_version_detect() {
-	date --version >/dev/null 2>&1
-	if (($? != 0));  then
-		# date utility is BSD. Test if gdate is installed 
-		if gdate --version >/dev/null 2>&1 ; then
-			date() {
-				gdate "$@"
-			}
-		else
-			# BSD date
-			date() {
-				if [[ $1 == -r ]]; then
-					# Fall back to using stat for 'date -r'
-					format=${3//+/}
-					stat -f "%Sm" -t "$format" "$2"
-				elif [[ $2 == --date* ]]; then
-					# convert between dates using BSD date syntax
-					command date -j -f "$date_format_full" "${2#--date=}" "$1" 
-				else
-					# acceptable format for BSD date
-					command date -j "$@"
-				fi
-			}
-		fi
-	fi    
-}
-
-# Main function
-# Encapsulated on its own function for readability purposes
-#
-# $1     command to run
-# $2     file name of a draft to continue editing (optional)
-do_main() {
-	# make sure we're in the right directory
-	#[ $(pwd) != $HOME/public_html/blog ] &&
-	#	echo "you're not in your blog directory. moving you there now" && mkdir -p $HOME/public_html/blog && cd $HOME/public_html/blog
-
-	# Detect if using BSD date or GNU date
-	date_version_detect
-	# Load default configuration, then override settings with the config file
-	global_variables
-	[[ -f $global_config ]] && source "$global_config" &> /dev/null 
-	global_variables_check
-
-	# Check for $EDITOR
-	[[ -z $EDITOR ]] && 
-		echo "Please set your \$EDITOR environment variable. For example, to use nano, add the line 'export EDITOR=nano' to your \$HOME/.bashrc file" && exit
-
-	# Check for validity of argument
-	[[ $1 != "reset" && $1 != "post" && $1 != "rebuild" && $1 != "list" && $1 != "edit" && $1 != "delete" && $1 != "tags" ]] && 
-		usage && exit
-
-	[[ $1 == list ]] &&
-		list_posts && exit
-
-	[[ $1 == tags ]] &&
-		list_tags "$@" && exit
-
-	if [[ $1 == edit ]]; then
-		if (($# < 2)) || [[ ! -f ${!#} ]]; then
-			echo "Please enter a valid .md or .html file to edit"
-			exit
-		fi
-	fi
-
-	# Test for existing html files
-	if ls ./*.html &> /dev/null; then
-		# We're going to back up just in case
-		tar -c -z -f ".backup.tar.gz" -- *.html &&
-			chmod 600 ".backup.tar.gz"
-	elif [[ $1 == rebuild ]]; then
-		echo "Can't find any html files, nothing to rebuild"
-		exit
-	fi
-
-	# Keep first backup of this day containing yesterday's version of the blog
-	[[ ! -f .yesterday.tar.gz || $(date -r .yesterday.tar.gz +'%d') != "$(date +'%d')" ]] &&
-		cp .backup.tar.gz .yesterday.tar.gz &> /dev/null
-
-	[[ $1 == reset ]] &&
-		reset && exit
-
-	create_css
-	create_includes
-	[[ $1 == post ]] && write_entry "$@"
-	[[ $1 == rebuild ]] && rebuild_all_entries && rebuild_tags
-	[[ $1 == delete ]] && rm "$2" &> /dev/null && rebuild_tags
-	if [[ $1 == edit ]]; then
-		if [[ $2 == -n ]]; then
-			edit "$3"
-		elif [[ $2 == -f ]]; then
-			edit "$3" full
-		else
-			edit "$2" keep
-		fi
-	fi
-	rebuild_index
-	all_posts
-	all_tags
-	make_rss
-	#make_gophermap
-	#make_gemini
-	delete_includes
-}
-
-
-#
-# MAIN
-# Do not change anything here. If you want to modify the code, edit do_main()
-#
-do_main "$@"
-
-# vim: set shiftwidth=4 tabstop=4 expandtab:
diff --git a/blog/feed.rss b/blog/feed.rss
index d2cc86a..8694113 100644
--- a/blog/feed.rss
+++ b/blog/feed.rss
@@ -2,10 +2,39 @@
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">
 <channel><title>GRU's blog</title><link>https://gru.codeberg.page/blog/index.html</link>
 <description>GRU's blog</description><language>en</language>
-<lastBuildDate>Tue, 14 Dec 2021 13:57:36 +0000</lastBuildDate>
-<pubDate>Tue, 14 Dec 2021 13:57:36 +0000</pubDate>
+<lastBuildDate>Sun, 19 Dec 2021 17:10:45 +0000</lastBuildDate>
+<pubDate>Sun, 19 Dec 2021 17:10:45 +0000</pubDate>
 <atom:link href="https://gru.codeberg.page/blog/feed.rss" rel="self" type="application/rss+xml">
 <item><title>
+GRU Devlog 21 - olibc
+</title><description><![CDATA[
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
+]]></description><link>https://gru.codeberg.page/blog/gru-devlog-21---olibc.html</link>
+<guid>https://gru.codeberg.page/blog/./gru-devlog-21---olibc.html</guid>
+<dc:creator>G1n</dc:creator>
+<pubDate>Sun, 19 Dec 2021 17:09:23 +0000</pubDate></item>
+<item><title>
 GRU Devlog 20 - olibc
 </title><description><![CDATA[
 
@@ -15,7 +44,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -24,8 +53,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 ]]></description><link>https://gru.codeberg.page/blog/gru-devlog-20---olibc.html</link>
 <guid>https://gru.codeberg.page/blog/./gru-devlog-20---olibc.html</guid>
diff --git a/blog/gru-devlog-20---olibc.html b/blog/gru-devlog-20---olibc.html
index 8571e5d..fe8f60d 100644
--- a/blog/gru-devlog-20---olibc.html
+++ b/blog/gru-devlog-20---olibc.html
@@ -30,7 +30,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -39,8 +39,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 <!-- entry end -->
 </div>
diff --git a/blog/gru-devlog-20---olibc.md b/blog/gru-devlog-20---olibc.md
index b49dc9d..19f1eac 100644
--- a/blog/gru-devlog-20---olibc.md
+++ b/blog/gru-devlog-20---olibc.md
@@ -6,7 +6,7 @@ with it and also fixed them.
 
 My current goal is to implement <string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don't know yet how I will be implemented. But it is already cool that we
+locale.h and I don't know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in <string.h>!
 
 Also we now have [gru webpage on codeberg](https://gru.codeberg.page)! Maybe next week I 
diff --git a/blog/gru-devlog-21---olibc.html b/blog/gru-devlog-21---olibc.html
new file mode 100644
index 0000000..1075682
--- /dev/null
+++ b/blog/gru-devlog-21---olibc.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html lang="en"><head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<link rel="stylesheet" href="main.css" type="text/css">
+<link rel="stylesheet" href="blog.css" type="text/css">
+<link rel="alternate" type="application/rss+xml" title="subscribe to this page..." href="https://gru.codeberg.page/blog/feed.xml">
+<title>GRU Devlog 21 - olibc</title>
+</head><body>
+<div id="divbodyholder">
+<div class="headerholder"><div class="header">
+<div id="title">
+<h1 class="nomargin"><a class="ablack" href="https://gru.codeberg.page/blog/index.html">GRU's blog</a></h1>
+<div id="description">GRU's blog</div>
+</div></div></div>
+<div id="divbody"><div class="content">
+<!-- entry begin -->
+<h3><a class="ablack" href="gru-devlog-21---olibc.html">
+GRU Devlog 21 - olibc
+</a></h3>
+<!-- bashblog_timestamp: #202112191709.23# -->
+<div class="subtitle">December 19, 2021 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
+<!-- entry end -->
+</div>
+<div id="footer">CC by-nc-nd <a href="https://gru.codeberg.page/">G1n</a> &mdash; <a href="mailto:g1n&#64;ttm&#46;sh">g1n&#64;ttm&#46;sh</a><br>
+generated with <a href="https://tildegit.org/team/bashblog">bashblog</a>, a single bash script to easily create blogs like this one</div>
+</div></div>
+</body></html>
diff --git a/blog/gru-devlog-21---olibc.md b/blog/gru-devlog-21---olibc.md
new file mode 100644
index 0000000..d92cfad
--- /dev/null
+++ b/blog/gru-devlog-21---olibc.md
@@ -0,0 +1,22 @@
+GRU Devlog 21 - olibc
+
+This week I also was making olibc. Now it is published! I have mostly implemented <string.h>, but there 
+still some funcs that require <locale.h>, so they are not implemented yet.
+
+I found out why olibc wasn't giving correct return value after program is executed. It was because
+liblinux wasn't exiting correctly, so it received some random return values from stack.
+
+Also a lot of testing were done. I have found out that several functions wasn't working correctly 
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user's machine. It prints a diff output if test was failed. It also have other 
+features, if you want you can check it by running `test.sh --help` by yourself.
+
+Because of it I have found that several functions were wrong implemented. But now finally 
+everything is working and strtok is correctly implemented!
+
+Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit
+
+Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
+
+tags: gru, olibc, liblinux
diff --git a/blog/index.html b/blog/index.html
index 8338c77..75e9097 100644
--- a/blog/index.html
+++ b/blog/index.html
@@ -14,6 +14,36 @@
 <div id="description">GRU's blog</div>
 </div></div></div>
 <div id="divbody"><div class="content">
+<h3><a class="ablack" href="gru-devlog-21---olibc.html">
+GRU Devlog 21 - olibc
+</a></h3>
+<!-- bashblog_timestamp: #202112191709.23# -->
+<div class="subtitle">December 19, 2021 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-20---olibc.html">
 GRU Devlog 20 - olibc
 </a></h3>
@@ -29,7 +59,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -38,8 +68,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 <h3><a class="ablack" href="gru-devlog-19---gic-and-several-libs.html">
 GRU Devlog 19 - gic and several libs
@@ -272,49 +300,6 @@ very success, but I hope to do it more often :)</p>
 
 
 
-<!-- text end -->
-<h3><a class="ablack" href="gru-devlog-10---orsh-now-like-proper-shell-and-gasm.html">
-GRU Devlog 10 - orsh now like proper shell and gasm
-</a></h3>
-<!-- bashblog_timestamp: #202110031554.01# -->
-<div class="subtitle">October 03, 2021 &mdash; 
-G1n
-</div>
-<!-- text begin -->
-
-<p>Hooray! Today is 10&rsquo;s GRU Devlog! :)</p>
-
-<p>This week i was trying to make notes to org document, to not forget something and put TODOs
-there for future weeks.</p>
-
-<p>First several days was the most valuable - readline support and signal handling!
-This means you can use emacs-like bindings there (but i think readline also supports vi bindings,
-so maybe i will add them too!)</p>
-
-<p>Also we now have very minimal completion support there :), but still proper function need to be added
-for that (currently only filenames completion)</p>
-
-<p>Orsh also has one session history, so you don&rsquo;t need to rewrite command from scratch now</p>
-
-<p>And I have started to use it as my main (but had some problems after chsh, so currently is autostarts after bash
-and i can exit from there any time i will need)</p>
-
-<p>Then I have started making our own assembler - gasm. Currently it only supports NOP, so i haven&rsquo;t published it yet.</p>
-
-<p>This week I also registered to ~news and shared devlog there (i think this devlog also will be there ;) )
-If you have lobste.rs account please contact me to invite me, if you can, because it may advertize GRU more!</p>
-
-<p>Today (Sunday) we had first testing GRU meeting via Jitsi. Thanks to r1k for joining.
-We need to make something like plan our schedule (to know about what to speak) and discuss meeting time better.</p>
-
-<p>Hope you liked this post and you will join our XMPP muc (if you are not already there) :).
-If you would like to help me, contact me via email, xmpp or irc :)</p>
-
-<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_org-mode.html'>org-mode</a>, <a href='tag_gasm.html'>gasm</a>, <a href='tag_orsh.html'>orsh</a>, <a href='tag_meeting.html'>meeting</a>, <a href='tag_lobste.rs.html'>lobste.rs</a>, <a href='tag_tilde.news.html'>tilde.news</a></p>
-
-
-
-
 <!-- text end -->
 <div id="all_posts"><a href="all_posts.html">archive</a> &mdash; <a href="all_tags.html">all tags</a> &mdash; <a href="https://gru.codeberg.page/blog/feed.xml">rss</a></div>
 </div>
diff --git a/blog/tag_gru.html b/blog/tag_gru.html
index b533ce6..55e600c 100644
--- a/blog/tag_gru.html
+++ b/blog/tag_gru.html
@@ -14,6 +14,36 @@
 <div id="description">GRU's blog</div>
 </div></div></div>
 <div id="divbody"><div class="content">
+<h3><a class="ablack" href="gru-devlog-21---olibc.html">
+GRU Devlog 21 - olibc
+</a></h3>
+<!-- bashblog_timestamp: #202112191709.23# -->
+<div class="subtitle">December 19, 2021 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-20---olibc.html">
 GRU Devlog 20 - olibc
 </a></h3>
@@ -29,7 +59,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -38,8 +68,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 <h3><a class="ablack" href="gru-devlog-19---gic-and-several-libs.html">
 GRU Devlog 19 - gic and several libs
diff --git a/blog/tag_liblinux.html b/blog/tag_liblinux.html
index 627840b..bc62a53 100644
--- a/blog/tag_liblinux.html
+++ b/blog/tag_liblinux.html
@@ -14,6 +14,36 @@
 <div id="description">GRU's blog</div>
 </div></div></div>
 <div id="divbody"><div class="content">
+<h3><a class="ablack" href="gru-devlog-21---olibc.html">
+GRU Devlog 21 - olibc
+</a></h3>
+<!-- bashblog_timestamp: #202112191709.23# -->
+<div class="subtitle">December 19, 2021 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-20---olibc.html">
 GRU Devlog 20 - olibc
 </a></h3>
@@ -29,7 +59,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -38,8 +68,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 <h3><a class="ablack" href="gru-devlog-19---gic-and-several-libs.html">
 GRU Devlog 19 - gic and several libs
diff --git a/blog/tag_olibc.html b/blog/tag_olibc.html
index 069af16..79e7820 100644
--- a/blog/tag_olibc.html
+++ b/blog/tag_olibc.html
@@ -14,6 +14,36 @@
 <div id="description">GRU's blog</div>
 </div></div></div>
 <div id="divbody"><div class="content">
+<h3><a class="ablack" href="gru-devlog-21---olibc.html">
+GRU Devlog 21 - olibc
+</a></h3>
+<!-- bashblog_timestamp: #202112191709.23# -->
+<div class="subtitle">December 19, 2021 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>This week I also was making olibc. Now it is published! I have mostly implemented &lt;string.h>, but there
+still some funcs that require &lt;locale.h>, so they are not implemented yet.</p>
+
+<p>I found out why olibc wasn&rsquo;t giving correct return value after program is executed. It was because
+liblinux wasn&rsquo;t exiting correctly, so it received some random return values from stack.</p>
+
+<p>Also a lot of testing were done. I have found out that several functions wasn&rsquo;t working correctly
+and fixed it. We have shell script for testing that compares results from our libc and libc that
+installed on user&rsquo;s machine. It prints a diff output if test was failed. It also have other
+features, if you want you can check it by running <code>test.sh --help</code> by yourself.</p>
+
+<p>Because of it I have found that several functions were wrong implemented. But now finally
+everything is working and strtok is correctly implemented!</p>
+
+<p>Also this blog finally moved totally from my webpage, so we can move this site on different
+server just by cloning it from codeberg or tildegit</p>
+
+<p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
+
+<p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-20---olibc.html">
 GRU Devlog 20 - olibc
 </a></h3>
@@ -29,7 +59,7 @@ with it and also fixed them.</p>
 
 <p>My current goal is to implement &lt;string.h> and after that I am planning to publish it.
 Currently most of funcs are implemented. Making strtok now but all other functions need
-locale.h and I don&rsquo;t know yet how I will be implemented. But it is already cool that we
+locale.h and I don&rsquo;t know yet how it will be implemented. But it is already cool that we
 have most of functions that should be in &lt;string.h>!</p>
 
 <p>Also we now have <a href="https://gru.codeberg.page">gru webpage on codeberg</a>! Maybe next week I
@@ -38,8 +68,6 @@ will move all devlogs to gru webpage so it will be easier to move.</p>
 <p>Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)</p>
 
 <p>tags: <a href='tag_gru.html'>gru</a>, <a href='tag_olibc.html'>olibc</a>, <a href='tag_liblinux.html'>liblinux</a></p>
-
-
 <!-- text end -->
 <h3><a class="ablack" href="gru-devlog-19---gic-and-several-libs.html">
 GRU Devlog 19 - gic and several libs