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Terminal - All commands - 12,274 results
netstat -tunlp
2010-06-07 13:26:05
User: ender_x
Functions: netstat
Tags: netstat

Shows you all listening tcp/udp ports, and what program has them open(depending on rights)

seq -s^2+ 11 |rev| cut -d'+' -f2- | rev | bc
2011-02-10 08:41:14
User: rubenmoran
Functions: cut rev seq
Tags: seq sum math

I can't put the last ^2 with seq, so I reverse it to delete the last +N. So for doing sum(N^2) you have to do sum((N+1)^2). Must be a better way.

pgrep -fl
emerge -e system && emerge -e system && emerge -e world && emerge -e world
2009-02-18 13:51:31
User: enlightend

This is a command you see mentioned alot by Gentoo monkeys.

They say to use it after every update of GCC, any library you might use and glibc.

They argue that compiling and recompiling everything like this will optimize the system alot more because you are recompiling the entire system (gcc, glibc etc) with nativly compiled versions of themselves. Same goes for all libraries etc.

I doubt the difference in working speed is really worth the hours and hours you end up having your computer compile the same stuff again and again though.

printf "%50s\n"|tr ' ' -
2010-01-07 08:49:46
User: rodolfoap
Functions: printf tr

Better -and faster- using bash printf.

watch -n 1 :
2009-03-25 23:00:28
User: penpen
Functions: watch
Tags: Linux unix

'watch' repeatedly (default every 2 seconds, -n 1 => every second) runs a command (here ':', a shorthand for 'true'), displays the output (here nothing) and the date and time of the last run.

I thought it to be obvious but it seemingly is not: to exit use Ctrl-C.

grep -c '^From ' mbox_file
for i in $(seq 1 20); do while read line; do echo "$i: $line"; done<$i.py; done
perl -m'AptPkg::Cache' -le '$c=AptPkg::Cache->new; for (keys %$c){ push @a, $_ if $c->{$_}->{'CurrentState'} eq 'Installed';} print for sort @a;'
2011-03-14 23:56:43
User: dbbolton
Functions: perl sort

A space-padded version:

perl -m'AptPkg::Cache' -e '$c=AptPkg::Cache->new; for (keys %$c){ push @a, $_ if $c->{$_}->{'CurrentState'} eq 'Installed';} print "$_ " for sort @a;'
YEST=`perl -w -e '@yest=localtime(time-86400);printf "%d%.2d%.2d",$yest[5]+1900,$yest[4]+1,$yest[3];'`
2009-05-19 08:54:06
User: sharfah
Tags: perl

Returns yesterday's date in the format yyyyMMdd

find . -type d -exec sh -c "normalize-audio -b \"{}\"/*.mp3" \;
2009-12-08 03:13:13
Functions: find sh

Execute this in the root of your music library and this recurses through the directories and normalizes each folder containing mp3s as a batch. This assumes those folders hold an album each. The command "normalize-audio" may go by "normalize" on some systems.

TOM=`perl -w -e '@tom=localtime(time+86400);printf "%d%.2d%.2d",$tom[5]+1900,$tom[4]+1,$tom[3];'`
2009-05-19 08:54:27
User: sharfah
Tags: perl

Returns tomorrow's date in the format yyyyMMdd

2010-09-11 18:51:41
User: mensa13

In case the line you want to join start with a char different than ", you may use \n.*"\n as regex.

echo $PATH|awk -F: ' { for (i=1; i <= NF; i++) print $i }'
IFS=`echo -en "\n\b"`; for i in $(curl http://feeds.digg.com/digg/container/technology/popular.rss | grep '<title>' | sed -e 's#<[^>]*>##g' | tail -n10); do echo $i; echo $i | sed 's/^/Did you hear about /g' | say; sleep 30; done
2010-06-07 22:16:19
User: echosedawk
Functions: echo grep sed sleep tail
Tags: bash sed curl osx

Instead of having someone else read you the Digg headlines, Have OSX do it. Requires Curl+Sed+Say. This could probably be easily modified to use espeak for Linux.

:bufdo %s/foo/bar/ge | up
dpkg --get-selections | awk '$2=="install" {print $1}' | sort
wget http://www.commandlinefu.com/commands/by/e7__7dal
pacof -e rlogin
2011-11-04 13:17:04
User: pipeliner

Uses dpkg -S or apt-file to find the file you want and shows results in various ways. Available at https://github.com/Pipeliner/configs/blob/master/bin/pacof

pacof -xp 'bin/[^/]*mixer'





find ~/.mozilla -name '*.sqlite' -exec sqlite3 {} VACUUM \;
echo 0 > /proc/sys/kernel/randomize_va_space
2010-07-11 16:42:42
User: gunslinger_
Functions: echo
Tags: kernel

Disable randomisation address

explorer $( cygpath "/path/to/file_or_exe" -w )
2009-07-22 17:00:21
User: Highwayman

This executes faster than


I put this in a script and added it to my path:

cat `which explore.sh`


if [ $# -eq 0 ]; then

explorer.exe $( cygpath `pwd` -w ) &


explorer.exe $( cygpath $1 -w ) &


Using the script you just type

explore.sh file_or_executable

Note: you can do this for any file that has an associated executable in the windows registry. This is quite handy if you want to open pictures or movies from xterm.

col_look(){ column -nts$'\t' "$1" | less -SN#2 }
2015-05-11 18:17:29
User: razerwolf
Functions: column less

Opens up a tab separated file in less with columns printed prettily

PS1='$PWD$ '
2009-02-13 22:00:57
User: Aldiansblog

If you have tried to change your prompt and made a mistake, use this command to retrieve a standard prompt.

If you used the export command when you changed your prompt, also use it there:

export PS1='$PWD$ '

file /music/dir/* | grep -v 44.1 | sed 's/:.*//g' | grep .mp3 | { while IFS= read; do filebak="\"$REPLY.original\""; file="\"$REPLY\""; mv $file $filebak; sox -t mp3 $filebak $file rate 44k; done; };
2010-08-12 21:53:28
User: IgnitionWeb
Functions: file grep mv sed
Tags: mp3 sox resample

This heavy one liner gets all the files in the "/music/dir/" directory and filters for non 44.1 mp3 files. After doing this it passes the names to sox in-order to re-sample those files. The original files are left just in case.