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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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Exclude inserting a table from a sql import

Starting with a large MySQL dump file (*.sql) remove any lines that have inserts for the specified table. Sometimes one or two tables are very large and uneeded, eg. log tables. To exclude multiple tables you can get fancy with sed, or just run the command again on subsequently generated files.

Run netcat to server files of current folder

Getting started with tcpdump

At some point you want to know what packets are flowing on your network. Use tcpdump for this. The man page is obtuse, to say the least, so here are some simple commands to get you started. -n means show IP numbers and don't try to translate them to names. -l means write a line as soon as it is ready. -i eth0 means trace the packets flowing through the first ethernet interface. src or dst w.x.y.z traces only packets going to or from IP address w.x.y.z. port 80 traces only packets for HTTP. proto udp traces only packets for UDP protocol. Once you are happy with each option combine them with 'and' 'or' 'not' to get the effects you want.

Show directories in the PATH, one per line

Shorter version.

Show Directories in the PATH Which does NOT Exist

OpenSSL one line CSR & Key generation

Recursively find top 20 largest files (> 1MB) sort human readable format

Search for files and list the 20 largest. $ find . -type f gives us a list of file, recursively, starting from here (.) $ -print0 | xargs -0 du -h separate the names of files with NULL characters, so we're not confused by spaces then xargs run the du command to find their size (in human-readable form -- 64M not 64123456) $ | sort -hr use sort to arrange the list in size order. sort -h knows that 1M is bigger than 9K $ | head -20 finally only select the top twenty out of the list

list block devices

Shows all block devices in a tree with descruptions of what they are.

Print every Nth line

Sometimes commands give you too much feedback. Perhaps 1/100th might be enough. If so, every() is for you. $ my_verbose_command | every 100 will print every 100th line of output. Specifically, it will print lines 100, 200, 300, etc If you use a negative argument it will print the *first* of a block, $ my_verbose_command | every -100 It will print lines 1, 101, 201, 301, etc The function wraps up this useful sed snippet: $ ... | sed -n '0~100p' don't print anything by default $ sed -n starting at line 0, then every hundred lines ( ~100 ) print. $ '0~100p' There's also some bash magic to test if the number is negative: we want character 0, length 1, of variable N. $ ${N:0:1} If it *is* negative, strip off the first character ${N:1} is character 1 onwards (second actual character).

Chrome sucks

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