diff --git a/blog/.backup.tar.gz b/blog/.backup.tar.gz
index 37f0508..d0bacab 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 37f0508..5dc465d 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 2861bf3..461bd1a 100644
--- a/blog/all_posts.html
+++ b/blog/all_posts.html
@@ -11,6 +11,10 @@
 <div id="divbody"><div class="content">
 <div id="header"><a href="/"><img src="../gru.png" style="width: 35%; height: 68px;"></a></div><hr>
 <h3>all posts</h3>
+<h4 class='allposts_header'>July 2022</h4>
+<ul>
+<li><a href="./gru-devlog-36---coreutils.html">GRU Devlog 36 - coreutils</a> &mdash; July 03, 2022</li>
+</ul>
 <h4 class='allposts_header'>June 2022</h4>
 <ul>
 <li><a href="./gru-devlog-35---deertree.html">GRU Devlog 35 - deertree</a> &mdash; June 12, 2022</li>
diff --git a/blog/all_tags.html b/blog/all_tags.html
index ec303cc..c10204d 100644
--- a/blog/all_tags.html
+++ b/blog/all_tags.html
@@ -14,7 +14,7 @@
 <ul>
 <li><a href="tag_binutils.html">binutils</a> &mdash; 1 post</li>
 <li><a href="tag_contribution.html">contribution</a> &mdash; 1 post</li>
-<li><a href="tag_coreutils.html">coreutils</a> &mdash; 2 posts</li>
+<li><a href="tag_coreutils.html">coreutils</a> &mdash; 3 posts</li>
 <li><a href="tag_deertree.html">deertree</a> &mdash; 2 posts</li>
 <li><a href="tag_dreams.html">dreams</a> &mdash; 1 post</li>
 <li><a href="tag_egg.html">egg</a> &mdash; 4 posts</li>
@@ -26,7 +26,7 @@
 <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; 35 posts</li>
+<li><a href="tag_gru.html">gru</a> &mdash; 36 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>
diff --git a/blog/feed.xml b/blog/feed.xml
index 7d68b1e..d2e59d7 100644
--- a/blog/feed.xml
+++ b/blog/feed.xml
@@ -2,10 +2,31 @@
 <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://gruos.org/blog/index.html</link>
 <description>GRU's Blog</description><language>en</language>
-<lastBuildDate>Sun, 12 Jun 2022 16:00:22 +0000</lastBuildDate>
-<pubDate>Sun, 12 Jun 2022 16:00:22 +0000</pubDate>
+<lastBuildDate>Sun, 03 Jul 2022 15:54:00 +0000</lastBuildDate>
+<pubDate>Sun, 03 Jul 2022 15:54:00 +0000</pubDate>
 <atom:link href="https://gruos.org/blog/feed.xml" rel="self" type="application/rss+xml">
 <item><title>
+GRU Devlog 36 - coreutils
+</title><description><![CDATA[
+
+<p>Last week I wasn&rsquo;t online for weekends, so decided to write devlog this week.
+Also, last 2 weeks I was mostly working on one of my admin projects
+(<a href="https://hextilde.xyz">hextilde.xyz</a>), so haven&rsquo;t done anything in that period of time.</p>
+
+<p>This week I was working on coreutils. It wasn&rsquo;t maintained for a long time, so I decided to
+add some utilities to it.</p>
+
+<p>I have restructured it, rewrote cat and added some utilities - head and wc.</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_coreutils.html'>coreutils</a></p>
+<!-- text end -->
+]]></description><link>https://gruos.org/blog/gru-devlog-36---coreutils.html</link>
+<guid>https://gruos.org/blog/./gru-devlog-36---coreutils.html</guid>
+<dc:creator>G1n</dc:creator>
+<pubDate>Sun, 03 Jul 2022 15:49:44 +0000</pubDate></item>
+<item><title>
 GRU Devlog 35 - deertree
 </title><description><![CDATA[
 
diff --git a/blog/gru-devlog-36---coreutils.html b/blog/gru-devlog-36---coreutils.html
new file mode 100644
index 0000000..7701357
--- /dev/null
+++ b/blog/gru-devlog-36---coreutils.html
@@ -0,0 +1,42 @@
+<!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://gruos.org/blog/feed.xml">
+<title>GRU Devlog 36 - coreutils</title>
+</head><body>
+<div id="divbodyholder">
+<div id="divbody"><div class="content">
+<div id="header"><a href="/"><img src="../gru.png" style="width: 35%; height: 68px;"></a></div><hr>
+<!-- entry begin -->
+<h3><a class="ablack" href="gru-devlog-36---coreutils.html">
+GRU Devlog 36 - coreutils
+</a></h3>
+<!-- bashblog_timestamp: #202207031549.44# -->
+<div class="subtitle">July 03, 2022 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>Last week I wasn&rsquo;t online for weekends, so decided to write devlog this week.
+Also, last 2 weeks I was mostly working on one of my admin projects
+(<a href="https://hextilde.xyz">hextilde.xyz</a>), so haven&rsquo;t done anything in that period of time.</p>
+
+<p>This week I was working on coreutils. It wasn&rsquo;t maintained for a long time, so I decided to
+add some utilities to it.</p>
+
+<p>I have restructured it, rewrote cat and added some utilities - head and wc.</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_coreutils.html'>coreutils</a></p>
+<!-- text end -->
+<!-- entry end -->
+<div id="footer">CC by-nc-nd <a href="https://gruos.org/">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>
+<hr>
+</div>
+</div></div>
+</body></html>
diff --git a/blog/gru-devlog-36---coreutils.md b/blog/gru-devlog-36---coreutils.md
new file mode 100644
index 0000000..49bcb9e
--- /dev/null
+++ b/blog/gru-devlog-36---coreutils.md
@@ -0,0 +1,14 @@
+GRU Devlog 36 - coreutils
+
+Last week I wasn't online for weekends, so decided to write devlog this week. 
+Also, last 2 weeks I was mostly working on one of my admin projects 
+([hextilde.xyz](https://hextilde.xyz)), so haven't done anything in that period of time.
+
+This week I was working on coreutils. It wasn't maintained for a long time, so I decided to
+add some utilities to it.
+
+I have restructured it, rewrote cat and added some utilities - head and wc.
+
+Hope you liked this post! If you would like to help us, contact me via email, xmpp or irc :)
+
+tags: gru, coreutils
diff --git a/blog/index.html b/blog/index.html
index 1c10dcc..ddaf8e1 100644
--- a/blog/index.html
+++ b/blog/index.html
@@ -10,6 +10,28 @@
 <div id="divbodyholder">
 <div id="divbody"><div class="content">
 <div id="header"><a href="/"><img src="../gru.png" style="width: 35%; height: 68px;"></a></div><hr>
+<h3><a class="ablack" href="gru-devlog-36---coreutils.html">
+GRU Devlog 36 - coreutils
+</a></h3>
+<!-- bashblog_timestamp: #202207031549.44# -->
+<div class="subtitle">July 03, 2022 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>Last week I wasn&rsquo;t online for weekends, so decided to write devlog this week.
+Also, last 2 weeks I was mostly working on one of my admin projects
+(<a href="https://hextilde.xyz">hextilde.xyz</a>), so haven&rsquo;t done anything in that period of time.</p>
+
+<p>This week I was working on coreutils. It wasn&rsquo;t maintained for a long time, so I decided to
+add some utilities to it.</p>
+
+<p>I have restructured it, rewrote cat and added some utilities - head and wc.</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_coreutils.html'>coreutils</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-35---deertree.html">
 GRU Devlog 35 - deertree
 </a></h3>
@@ -225,30 +247,6 @@ not relaleted to GRU (but could be useful in future, for example for testing)</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_orion.html'>orion</a>, <a href='tag_binutils.html'>binutils</a>, <a href='tag_objdump.html'>objdump</a>, <a href='tag_e.html'>e</a>, <a href='tag_egg.html'>egg</a></p>
-<!-- text end -->
-<h3><a class="ablack" href="gru-devlog-26---new-server-oircd-orion-rewrite.html">
-GRU Devlog 26 - new server, oircd, orion rewrite
-</a></h3>
-<!-- bashblog_timestamp: #202202061821.03# -->
-<div class="subtitle">February 06, 2022 &mdash; 
-G1n
-</div>
-<!-- text begin -->
-
-<p>This 2 weeks were long for me. Previous week chunk donated domain and server for us so now this
-blog and webpage is avalible on <a href="https://gruos.org/">https://gruos.org</a>. Also i setupped mail
-there and tryed to setup irc network, but we don&rsquo;t have services yet.</p>
-
-<p>Also previous week I tryed to make hashmap and some other things for oIRCd, but it wasn&rsquo;t really success.</p>
-
-<p>This week i started developing Orion rewrite. It already has interrupts working and enabled paging.
-For now I don&rsquo;t know how to make timer and keyboard working. Currently I am trying to write page frame
-allocator, it will open road to proper memory manager for us. I hope next few weeks I will focus on Orion.</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_oircd.html'>oircd</a>, <a href='tag_server.html'>server</a>, <a href='tag_orion.html'>orion</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://gruos.org/blog/feed.xml">rss</a></div>
 <div id="footer">CC by-nc-nd <a href="https://gruos.org/">G1n</a> &mdash; <a href="mailto:g1n&#64;ttm&#46;sh">g1n&#64;ttm&#46;sh</a><br>
diff --git a/blog/tag_coreutils.html b/blog/tag_coreutils.html
index 6618288..d7c6996 100644
--- a/blog/tag_coreutils.html
+++ b/blog/tag_coreutils.html
@@ -10,6 +10,28 @@
 <div id="divbodyholder">
 <div id="divbody"><div class="content">
 <div id="header"><a href="/"><img src="../gru.png" style="width: 35%; height: 68px;"></a></div><hr>
+<h3><a class="ablack" href="gru-devlog-36---coreutils.html">
+GRU Devlog 36 - coreutils
+</a></h3>
+<!-- bashblog_timestamp: #202207031549.44# -->
+<div class="subtitle">July 03, 2022 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>Last week I wasn&rsquo;t online for weekends, so decided to write devlog this week.
+Also, last 2 weeks I was mostly working on one of my admin projects
+(<a href="https://hextilde.xyz">hextilde.xyz</a>), so haven&rsquo;t done anything in that period of time.</p>
+
+<p>This week I was working on coreutils. It wasn&rsquo;t maintained for a long time, so I decided to
+add some utilities to it.</p>
+
+<p>I have restructured it, rewrote cat and added some utilities - head and wc.</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_coreutils.html'>coreutils</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-17-18---coreutils-egg-and-ideas.html">
 GRU Devlog 17-18 - coreutils, EGG and ideas
 </a></h3>
diff --git a/blog/tag_gru.html b/blog/tag_gru.html
index 649b7c3..1bffdeb 100644
--- a/blog/tag_gru.html
+++ b/blog/tag_gru.html
@@ -10,6 +10,28 @@
 <div id="divbodyholder">
 <div id="divbody"><div class="content">
 <div id="header"><a href="/"><img src="../gru.png" style="width: 35%; height: 68px;"></a></div><hr>
+<h3><a class="ablack" href="gru-devlog-36---coreutils.html">
+GRU Devlog 36 - coreutils
+</a></h3>
+<!-- bashblog_timestamp: #202207031549.44# -->
+<div class="subtitle">July 03, 2022 &mdash; 
+G1n
+</div>
+<!-- text begin -->
+
+<p>Last week I wasn&rsquo;t online for weekends, so decided to write devlog this week.
+Also, last 2 weeks I was mostly working on one of my admin projects
+(<a href="https://hextilde.xyz">hextilde.xyz</a>), so haven&rsquo;t done anything in that period of time.</p>
+
+<p>This week I was working on coreutils. It wasn&rsquo;t maintained for a long time, so I decided to
+add some utilities to it.</p>
+
+<p>I have restructured it, rewrote cat and added some utilities - head and wc.</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_coreutils.html'>coreutils</a></p>
+<!-- text end -->
 <h3><a class="ablack" href="gru-devlog-35---deertree.html">
 GRU Devlog 35 - deertree
 </a></h3>
