76 lines
2.5 KiB
Bash
Executable File
76 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
|
|
# Output a sorted list of currently logged-in users, tfurrows@sdf.org
|
|
# Completely and utterly free, do whatever you want with this.
|
|
|
|
#defaults
|
|
c0="\e[0m" # color reset
|
|
c1="\e[32m" # title and total color
|
|
c2="\e[36m" # color of [letter]
|
|
c3="\e[33m" # color of user count per letter
|
|
c4="\e[35m" # color of known users (from ~/.whoiknow)
|
|
|
|
# Process arguments
|
|
while getopts "hc" opt; do
|
|
case $opt in
|
|
h)
|
|
printf "Usage: whoa [-ch]\n"
|
|
printf " -c removes all color, -h shows this message. \n"
|
|
printf " Place a text file named .whoiknow in your root, one login name per line, to highlight known users in the output.\n"
|
|
exit
|
|
;;
|
|
c)
|
|
# color off
|
|
c0=""
|
|
c1=""
|
|
c2=""
|
|
c3=""
|
|
c4="*"
|
|
;;
|
|
\?)
|
|
printf "Usage: whoa [-ch]\n"
|
|
printf " -c removes all color, -h shows this message. \n"
|
|
printf " Place a text file named .whoiknow in your root, one login name per line, to hi
|
|
ghlight known users in the output.\n"
|
|
exit;
|
|
;;
|
|
esac
|
|
done
|
|
|
|
# check for .whoiknow text file, read known usernames into array
|
|
declare knownUsers
|
|
if [ -f ~/.whoiknow ]; then
|
|
mapfile -t knownUsers < ~/.whoiknow
|
|
fi
|
|
|
|
# Get and sort user list
|
|
USERS="$(/usr/bin/who -q | sed -e '$d')"
|
|
array=(${USERS// / })
|
|
readarray -t sorted < <(for a in "${array[@]}"; do echo "$a"; done | sort -u)
|
|
|
|
# store in associative array
|
|
declare -A alphaUsers
|
|
for i in "${!sorted[@]}"
|
|
do
|
|
if [[ " ${knownUsers[@]} " =~ " ${sorted[i]} " ]]; then
|
|
alphaUsers["${sorted[i]:0:1}"]+="${c4}"${sorted[i]}"${c0}, "
|
|
else
|
|
alphaUsers["${sorted[i]:0:1}"]+=${sorted[i]}", "
|
|
fi
|
|
done
|
|
|
|
printf "\n ${c1}Alphabetical User List (logged in)${c0}\n"
|
|
for x in {a..z}
|
|
do
|
|
if [[ ! -z ${alphaUsers[$x]} ]]; then
|
|
countTemp="${alphaUsers[$x]//[^ ]}"
|
|
total="$(($total+${#countTemp}))"
|
|
countTemp=$(printf "%03d" ${#countTemp})
|
|
|
|
printf "\n [${c2}${x^}${c0}] [${c3}$countTemp${c0}] "
|
|
printf "${alphaUsers[$x]::-2}" #strip the last comma/space off
|
|
fi
|
|
done
|
|
|
|
printf "\n\n ${c1}$total users total${c0}"
|
|
printf "\n\n"
|