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sed -i 's/\r\n//' file.txt
perl -MModule::Name\ 9999 -e 1
2013-01-15 22:51:39
User: three18ti
Functions: perl
Tags: bash perl zsh

This attempts to load a Perl Module (-M flag) and use version 9999, since no module has a version this high, Perl exits either a) telling you the version of the module installed or b) tells you it can't find the module.

hgrep() { ... } longer then 255 characters, see below
2014-04-02 16:40:36
User: Xk2c



if [[ ${#} -eq 0 ]]


printf "usage:\nhgrep [--nonum | -N | -n | --all-nonum | -an | -na] STRING\n"

return 1


while [[ ${#} -gt 0 ]]


case ${1} in

--nonum | -N | -n | --all-nonum | -an | -na)

builtin history | sed 's/^[[:blank:]]\+[[:digit:]]\{1,5\}[[:blank:]]\{2\}//' | grep -iE "(${*:2})"




builtin history | grep -iE "(${*})"






'hgrep -n' helps in using full grep support, e.g. search for _beginning_ of specific commands,

see example output

du -sm *|sort -rn|head -10
season=1; for file in $(ls) ; do dir=$(echo $file | sed 's/.*S0$season\(E[0-9]\{2\}\).*/\1/'); mkdir $dir ; mv $file $dir; done
2009-05-27 03:30:58
User: lonecat
Functions: echo file mkdir mv sed

It happened to me that I got a season of a tv-show which had all files under the same folder like /home/blah/tv_show/season1/file{1,2,3,4,5,...}.avi

But I like to have them like this:


So I can have both the srt and the avi on one folder without cluttering much. This command organizes everything assuming that the filename contains Exx where xx is the number of the episode.

You may need to set:


if your filenames have spaces.

xwinwrap -ni -argb -fs -s -st -sp -nf -b -- /usr/libexec/xscreensaver/atlantis -count 20 -window-id WID &
2009-09-23 05:29:21
User: dstahlke
Tags: xwinwrap

xwinwrap allows you to run any program in the root desktop pane. I like to run atlantis, it goes well against Fedora 10's blue sun background. At one time this also served a useful purpose for me as a workaround for a problem that would happen when the video card went into sleep mode.

wget -O xkcd_$(date +%y-%m-%d).png `lynx --dump http://xkcd.com/|grep png`; eog xkcd_$(date +%y-%m-%d).png
awk -vRS="</Tag2>" '/<Tag2>/{gsub(/.*<Tag2>/,"");print}' file
while true; do /bin/ping -q -c1 -w3 2>&1 > /dev/null || echo " ping failed at $(date +%d/%m/%y) $(date +%H:%M:%S)" >> /var/log/ping.log; sleep 10; done &
2011-05-12 01:51:07
User: Arkey
Functions: echo sleep

This command are using by me for checking connection with Internet.

fping -g -r 1 | grep -v unreachable | awk '{print $1}'
Find files that have been changed by a Chef run today.
$ apg -m 40 -a 1
2013-07-26 14:13:49
User: blz

apg generates several random passwords. It uses several password generation algorithms (currently two) and a built-in pseudo random number generator.

find -L /home/sonic/archive -name '*gz' -type f
2013-10-07 14:32:22
User: sonic
Functions: find
Tags: find

If /home/sonic/archive/ was a symlink to /backup/sonic/archive it would follow the links and give you the file listing. By default find will NOT follow symbolic links. The default behavior for the find command is to treat the symlinks as literal files.

I discovered this when trying to write a script run via cron to delete files with a modification time older than X days. The easiest solution was to use:

/usr/bin/find -L /home/sonic/archive -name '*gz' -type f -mtime +14 -exec rm '{}' \;

IFS=$(echo -en "\n\b"); mkdir Epub; for i in `find . | grep epub`; do echo "epub: $i"; mv -v "$i" Epub; done
C:\> shutdown /f /r /t 0
2014-04-02 22:35:00
User: mpb
Functions: shutdown

Today, I needed to reboot a Windoze machine on another continent which had no shutdown or restart options via "Start" in the remote desktop (the only options available were: "Logoff, Disconnect, or Lock").

Fortunately, I found how to shutdown and restart from the command line.

getarray(){ a=$1;b="${a[$2]}";eval "c=$b";echo "${c[$3]}";return 0;};a[0]="( a b c )";a[1]="( d e f )";getarray a 1 2
whereis command
cat file | sed -n -r '/^100$|^[0-9]{1,2}$/p'
2010-05-15 19:15:56
User: voyeg3r
Functions: cat file sed

-r to use extended regex

^ begin line

| alternative

get 100 or 0-9 one or two times

STA=KILCHICA30 PAG=http://api.wunderground.com/weatherstation/WXCurrentObXML.asp?ID=${STA} D=($(curl -s $PAG | sed -n 's/.*<\(temp_f\|wind_dir\|wind_mph\)>\(.*\)<\/.*/\2/p')) echo ${D[1]}@${D[2]}mph ${D[0]}F
2010-10-28 00:40:28
User: sud0er
Functions: echo sed

Uses the Wunderground web API to get weather data. Change the STA variable to a station near you.

cat search_items.txt | while read i; do surfraw google -browser=firefox $i; done
2011-05-12 09:27:08
User: bubo
Functions: cat read

tired of opening tabs and fill in search forms by hand? just pipe the search terms you need into this surfraw loop. you can use any browser you have installed, but a graphical browser with a tabbed interface will come in handy. surfraw can be found here:


wget --no-check-certificate https://code.google.com/p/msysgit/downloads/list -O - 2>nul | sed -n "0,/.*\(\/\/msysgit.googlecode.com\/files\/Git-.*\.exe\).*/s//http:\1/p" | wget -i - -O Git-Latest.exe
2012-11-14 08:17:50
User: michfield
Functions: sed wget
Tags: git windows wget

This command should be copy-pasted in Windows, but very similar one will work on Linux.

It uses wget and sed.

cd -
perl -e 'printf "%vd\n",pack "N",rand 256**4'
sshpass -p 't@uyM59bQ' ssh username@server.example.com
2012-02-13 09:51:41
User: djyoda
Functions: ssh

You can use sshpass command to provide password for ssh based login. sshpass is a utility designed for running ssh using the mode referred to as "keyboard-interactive" password authentication, but in non-interactive mode.

mkdir Epub ; mv -v --target-directory=Epub $(fgrep -lr epub *)