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FInd out what branches a specific commit belongs to
This is sample output - yours may be different.
-1

git branch --contains <commit sha1 id> | sed -e 's/^[ *]*//'

jimthunderbird · 2010-08-02 03:46:47 3
Switch to windows using gpicker

Require wmctrl and gpicker and an EWMH/NetWM compatible X Window Manager
This is sample output - yours may be different.
-1

wmctrl -i -a `wmctrl -l -x | gpicker -d "\n" -n "\n" - | awk '{print $1}'`

Iany · 2010-08-30 02:19:43 4
List of syscalls (for 32/64 bits systems)
This is sample output - yours may be different.
-1

egrep '__NR_' /usr/include/asm/unistd_`getconf -a | awk '$1~/^WORD/{print $2}'`.h | sed -e 's/^#define __NR_//' | column -t

cicatriz · 2011-03-04 15:09:40 6

retrieve GMT time from websites ( generally accruate )

w3m is a commanline web browser, full of options, I used -dump_head for less unnecessary page download. With awk, I can retrieve dynamic changes in webpages in this very econnomical fashion Show Sample Output

-1

w3m -dump_head www.fiat.com | awk '/Date+/{print $6, $7}'

m33600 · 2009-06-08 00:06:01 7

intersection between two files

print members both in file1 and file2
This is sample output - yours may be different.
-1

sort file1 file2 | uniq -d

emacs · 2010-05-28 10:25:31 6
Remove a line from a file using sed (useful for updating known SSH server keys when they change)

Easily removes line #2 in ~/.ssh/known_hosts. Show Sample Output
This is sample output - yours may be different.
-1

perl -p -i -e 's/.*\n//g if $.==2' ~/.ssh/known_hosts

meappy · 2012-01-17 14:11:03 3
List OSX applications and versions.

Uses find, plutil and xpath. Note: Some applications don't have proper information. system_profiler might be better to use. It's a bit slow query. Due to command length limit, I removed -name "*.app" and CFBundleName. Show Sample Output
This is sample output - yours may be different.
```
/Applications/CheatSheet.app
v1.0.3
/Applications/Chess.app
v3.0
```
-1

find /Applications -type d -maxdepth 1 -exec sh -c 'echo "{}"; (plutil -convert xml1 -o - "{}/Contents/Info.plist" | xpath /dev/stdin "concat(\"v\", /plist/dict/string[preceding-sibling::key[1]=\"CFBundleShortVersionString\"]/node())" 2>/dev/null)' \;

darkfader · 2013-03-29 14:01:23 4
Compare a remote file with a local file

Or, if you have restricted access for sftp only, I think you can still do this: diff /path/to/localfile <(scp user@host:/path/to/remotefile >(cat))
This is sample output - yours may be different.
-1

diff /path/to/localfile <(ssh user@host cat /path/to/remotefile)

mc0e · 2013-05-24 09:24:31 8
Add cover-art to mp3 tags
This is sample output - yours may be different.
-1

eyeD3 --add-image=coverart.jpg:FRONT_COVER musicfile.mp3

munter · 2013-08-17 22:35:54 8
get size of a file
This is sample output - yours may be different.
-1

du -hs file-name

bharat · 2014-05-09 07:22:53 7
Get a text on a position on the file and store in a variable
This is sample output - yours may be different.
-1

TIMEUNIT=$(awk '/timescale/{print NR}' a)

arcege · 2009-10-28 12:12:37 3
Match a URL

don't have to be that complicated
This is sample output - yours may be different.
-1

cho "(Something like http://foo.com/blah_blah)" | awk '{for(i=1;i<=NF;i++){if($i~/^(http|ftp):\/\//)print $i}}'

unixmonkey7109 · 2009-11-28 03:31:41 6
Recursively remove .svn directories

man find: If no paths are given, the current directory is used. - Can anybody tell me why so many people are typing the dot?
This is sample output - yours may be different.
-1

find -type d -name ".svn" -print0 | xargs -0 rm -rf

tuxilicious · 2010-02-25 10:16:18 6
encode a text to url_encoded format
This is sample output - yours may be different.
-1

groovy -e 'println URLEncoder.encode("Some text")'

yababay · 2010-08-30 16:04:29 4
display mean response time of intermediates to a specified host

mtr is a network utility that combines traceroute and ping utility
This is sample output - yours may be different.
-1

mtr -c 50 -r example.com

ohe · 2015-08-05 07:18:52 10
command to display info about the core specified

Display information about the cores. * sudo apt-get install schedtool Show Sample Output
This is sample output - yours may be different.
```
PID     1: PRIO   0, POLICY N: SCHED_NORMAL  , NICE   0, AFFINITY 0x1
```
-1

schedtool 1

terminalhacker · 2009-08-06 08:42:03 3
Create .tar file on Mac OS X Leopard / Snow Leopard without ._* files

Using the COPYFILE_DISABLE=true environment variable you can prevent tar from adding any ._-files to your .tar-file on Mac OS X.
This is sample output - yours may be different.
-1

COPYFILE_DISABLE=true tar cvf newTarFile.tar Directory/

alainkaa · 2010-07-01 09:36:48 3
Get full directory path of a script regardless of where it is run from

work for execute file
This is sample output - yours may be different.
-1

dirname $(readlink -f ${BASH_SOURCE[0]})

unixyangg · 2011-12-02 16:10:38 3
Avoid using seq and pad numbers with leading zeros

zsh only I always hated resorting to using $(seq -w 1 99) to pad numbers. zsh provides a shortcut that couldn't be more intuitive. It also works in reverse {99..01} Show Sample Output
This is sample output - yours may be different.
```
001
002
...
998
999
```
-1

for i in {001..999}; print $i

karld · 2009-02-16 23:03:53 7
Random unsigned integer

Grab 4 bytes from www.random.org over ssl and format them as an integer
This is sample output - yours may be different.
-1

curl -s "https://www.random.org/cgi-bin/randbyte?nbytes=4" | od -DAn

PhillipNordwall · 2010-11-09 18:26:24 4
find php files even without extension

needs grep what supports '--recursive' Show Sample Output
This is sample output - yours may be different.
```
./CustomFields/add-avatars.php
./examples/example-widget.php
./examples/multiwidget.php
./examples/Recent_Comments.php
./examples/Recent_Posts.php
```
-1

grep -Ilr "<?php" .

mitry · 2011-10-23 05:11:53 3
Get your external IP address
This is sample output - yours may be different.
-1

html2text http://checkip.dyndns.org | grep -i 'Current IP Address:'|cut -c21-36

tkoopa · 2009-08-06 10:29:02 4
speak a chat log file while it's running

like #9295, but awkish instead of perlish
This is sample output - yours may be different.
-1

tail -f LOGFILE | awk '{system("say \"" $0 "\"");}'

tamouse · 2011-09-16 06:20:06 9
tar the current directory wihtout the absolute path

should do the same as command #12875, just shorter.
This is sample output - yours may be different.
-1

tar -cf "../${PWD##*/}.tar" .

joedhon · 2013-11-06 11:15:38 9
Load multiple sql script in mysql

Be aware of using the --password argument as it will appear your password in plain text on the screen. You may use -p argument instead, it will prompt you to enter you password in hidden mode.
This is sample output - yours may be different.
-1

cat schema.sql data.sql test_data.sql | mysql -u user --password=pass dbname

tristan_ph · 2009-03-24 08:39:40 6
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List all databases in Postgres and their (byte/human) sizes, ordering by byte size descending

Get a listing of all of your databases in Postgres and their sizes, ordering by the largest size first. Requires that you give the -d parameter a valid database name that you can connect to.

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Number of connections to domains on a cPanel server

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Reverse SSH

this command from the source server and this follow in the destination server: ssh user@localhost -p 8888

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Copy your ssh public key to a server from a machine that doesn't have ssh-copy-id

If you use Mac OS X or some other *nix variant that doesn't come with ssh-copy-id, this one-liner will allow you to add your public key to a remote machine so you can subsequently ssh to that machine without a password.

get rid of lines with non ascii characters

found here: https://stackoverflow.com/a/9035939

external projector for presentations

i spent way too many hours trying to fiddle with /etc/X11/xorg.conf trying to hook up various external projectors. too bad i didn't know this would solve all my problems.

Display disk partition sizes

Use lsbk (list block) and jq (to manipulate a JSON on the command line) to display partition information:

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