Commands using egrep sorted by votes

Commands using egrep (220)

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Show all video files in the current directory (and sub-dirs)
This is sample output - yours may be different.
-1

find -type f -printf '%P\000' | egrep -iz '\.(avi|mpg|mov|flv|wmv|asf|mpeg|m4v|divx|mp4|mkv)$' | sort -z | xargs -0 ls -1

udim · 2009-04-19 19:45:11 23
Using gdiff only select lines that are common between two files

This commands will make it easier to select only common items between two files being compared. If your lines start with things other than lowercase a-z, adjust this Regex appropriately. Number of lines in the output has been set to no more than 10000, and should be adjusted as needed.
This is sample output - yours may be different.
-1

gdiff --unified=10000 input.file1 inpute.file2 | egrep -v "(^\+[a-z]|^\-[a-z])"| sort > outputfile.sorted

slashdot · 2009-06-18 20:35:00 8
Read just the IP address of a device

to clean up the extra lines Show Sample Output
This is sample output - yours may be different.
```
127.0.0.1
192.168.1.127
```
-1

/sbin/ifconfig | grep inet | cut -f 2 -d ":" | cut -f 1 -d " " |egrep -v "^$"

giray · 2009-07-22 07:27:54 3
Get your external IP address

Same thing as above, just uses fetch and ipchicken.com Show Sample Output
This is sample output - yours may be different.
```
1.2.3.4
```
-1

fetch -q -o - http://ipchicken.com | egrep -o '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}'

spackle · 2009-08-06 11:57:44 3
search for a file in PATH

search argument in PATH accept grep expressions without args, list all binaries found in PATH Show Sample Output
This is sample output - yours may be different.
```
$ sepath noo
/usr/openwin/bin/ttsnoop
/usr/sbin/snoop
$ sepath ^ps$
/bin/ps
/usr/bin/ps
/usr/ucb/ps
```
-1

function sepath { echo $PATH |tr ":" "\n" |sort -u |while read L ; do cd "$L" 2>/dev/null && find . $ ! -name . -prune $ $ -type f -o -type l $ 2>/dev/null |sed "s@^\./@@" |egrep -i "${*}" |sed "s@^@$L/@" ; done ; }

mobidyc · 2009-09-11 15:03:22 5
regex to match an ip

Handles everything except octets with 255. Ran through ip generator with variable octet lengths.
This is sample output - yours may be different.
-1

echo 127.0.0.1 | egrep -e '^(([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])\.){3}([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])$'

arcege · 2009-09-17 17:40:48 3
Check if variable is a number
This is sample output - yours may be different.
-1

echo $X | egrep "^[0-9]+$"

sharfah · 2009-10-09 13:59:47 6
search for a pattern (regex) in all text files (ignoring binary files) in a directory tree
This is sample output - yours may be different.
-1

find . -type f | perl -lne 'print if -T;' | xargs egrep "somepattern"

unixmonkey7263 · 2009-12-01 19:12:03 6
View the newest xkcd comic.

Same thing just a different way to get there. You will need lynx
This is sample output - yours may be different.
-1

lynx --dump --source http://www.xkcd.com | grep `lynx --dump http://www.xkcd.com | egrep '(png|jpg)'` | grep title | cut -d = -f2,3 | cut -d '"' -f2,4 | sed -e 's/"/|/g' | awk -F"|" ' { system("display " $1);system("echo "$2); } '

solarislackware · 2009-12-03 18:53:57 3
easily find megabyte eating files or directories

Thanks for the submit! My alternative produces summaries only for directories. The original post additionally lists all files in the current directory. Sometimes the files, they just clutter up the output. Once the big directory is located, *then* worry about which file(s) are consuming so much space.
This is sample output - yours may be different.
-1

du -kd | egrep -v "/.*/" | sort -n

rmbjr60 · 2010-03-30 15:40:35 3
Remove everything except that file

This is a slight variation of an existing submission, but uses regular expression to look for files instead. This makes it vastly more versatile, and one can easily verify the files to be kept by running ls | egrep "[REGULAR EXPRESSION]"
This is sample output - yours may be different.
-1

ls | egrep -v "[REGULAR EXPRESSION]" | xargs rm -v

Saxphile · 2010-04-01 02:40:40 4
Remove all the files except abc in the directory

Really, you deserve whatever happens if you have a whitespace character in a file name, but this has a small safety net. The truly paranoid will use '-i'.
This is sample output - yours may be different.
-1

rm $( ls | egrep -v 'abc|\s' )

dbbolton · 2010-07-18 10:59:15 4
gmail safe folder

Returns any file in the folder which would be rejected by Gmail, if you were to send zipped version. (Yes, you could just zip it and knock the extension off and put it back on the other side, but for some people this just isn't a solution) Show Sample Output
This is sample output - yours may be different.
```
./.local/share/Trash/files/run.bat
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/ZPortfolioRes.dll
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/zrtf.dll
./.wine/drive_c/Program Files/Nuance/PDF Reader/bin/ztypeset.dll
./writeup/lib/mempatch.ins
./writeup/lib/memoir.ins
```
-1

find | egrep "\.(ade|adp|bat|chm|cmd|com|cpl|dll|exe|hta|ins|isp|jse|lib|mde|msc|msp|mst|pif|scr|sct|shb|sys|vb|vbe|vbs|vxd|wsc|wsf|wsh)$"

poulter7 · 2010-11-23 16:53:55 10
find the device when you only know the mount point

Shorter way to find the device for a given mountpoint
This is sample output - yours may be different.
-1

df /media/mountpoint |egrep -o '^[/a-z0-9]*'

DaveQB · 2011-01-24 21:14:55 4
Identifying Xorg video driver in use

The above one liner can be used to determine what card/driver is Xorg currently using. For additional information, see http://goo.gl/mDnWu Show Sample Output
This is sample output - yours may be different.
```
[    27.597] (II) RADEON(0): PCIE card detected
[    27.638] (II) RADEON(0): Output LVDS connected
```
-1

egrep -i " connected|card detect|primary dev" /var/log/Xorg.0.log

axelabs · 2011-02-24 18:04:04 5
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
this svn script will commit all files excluding those with extensions {.project .classpath .properties .sh .number} and those with Status Modified or Added {M or A}
This is sample output - yours may be different.
-1

svn st | grep -e [MA] | egrep -ve '.project|.classpath|.properties|.sh|.number' | awk -F' ' '{ print $2}' | xargs svn ci -m "message"

drunkcoder · 2011-03-10 15:32:36 6
Delete files and directories from current directory exept those specified
This is sample output - yours may be different.
-1

rm -R `ls | egrep -v 'dir1|dir2|file1'`

killman · 2011-08-07 08:34:17 3
Discover media files from a web page

Discover host and url of media files (ex. flv, mp4, m4v..). It locate the urls of audio and video files so that they can be recorded.
This is sample output - yours may be different.
-1

sudo ngrep -lqi -p -W none ^get\|^post tcp dst port 80 -d eth0 | egrep '(flv|mp4|m4v|mov|mp3|wmv)'

marste · 2011-09-18 06:33:36 6
Speaks latest tweet by Obama (os x)

speaks out last twitter update using 'say'
This is sample output - yours may be different.
-1

curl "http://api.twitter.com/1/statuses/user_timeline.xml?count=1&screen_name=barackobama" | egrep -w "<text>(.*)</text>" | sed -E "s/<\/?text>//g" | say

beerdeaap · 2012-02-27 18:46:33 3
find all c and cpp files except the ones in the unit-test and android subdirectories

Very useful for finding all the source code that should be compiled.
This is sample output - yours may be different.
-1

find . -name unit-test -o -name '*.c' -o -name '*.cpp' | egrep -v "unit-test|android"

riansanderson · 2012-04-26 17:13:41 3

Use exit codes that actually means something.

Use meaningful exit codes change "source" to "cat" to view output instead of assigning Show Sample Output

-1

source <(egrep '^#define EX_.*' /usr/include/sysexits.h | sed -e 's/#define/declare -r/g' | sed 's/\//#/g' | sed -e 's/\s\{1,\}/ /g' | sed -e 's/ $[0-9]$/\=\1/'g )

fishdaemon · 2012-09-21 13:30:37 10

Shortcut to search a process by name

Function that searchs a process by its name and shows in the terminal. * Shows the Header for reference * Hides the process 'grep' from the list * Case sensitive Show Sample Output

-1

psg(){ ps aux | grep -v grep | egrep -e "$1|USER"; }

ivanalejandro0 · 2014-12-31 22:27:27 9

Shows your WAN IP, when you`re sitting behind a router
This is sample output - yours may be different.
-2

alias myip='curl -s www.wieistmeineip.de | egrep -o "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"'

P17 · 2009-03-24 20:21:36 9
Get your external IP address
This is sample output - yours may be different.
-2

wget http://checkip.dyndns.org && clear && echo && echo My IP && egrep -o '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}' index.html && echo && rm index.html

onkelchentobi · 2009-08-07 21:21:59 4
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list files recursively by size

Output requirements.txt packages pinned to latest version

Given a requirements.txt file with unpinned package names, output the packages pinned to the latest version. Handy to copy/paste back into your requirements.txt when you start a new project. Note that this will download packages but not install them.

export iPad App list to txt file

This will generate the same output without changing the current directory, and filepath will be relative to the current directory. Note: it will (still) fail if your iTunes library is in a non-standard location.

Install pip with Proxy

Installs pip packages defining a proxy

climagic's New Year's Countdown clock

This is the 140 character long new year's countdown timer that was posted to the climagic account on twitter and identi.ca. There are saner ways of doing this of course, but probably none of those would fit. Uses the figlet command, but of course you can replace figlet with just echo if you want.

Check all bash scripts in current dir for syntax errors

Check all bash scripts in current dir for syntax errors WITHOUT running them.

Best option set for 7zip compression of database dumps or generic text files

These re the best option combination that works fine for compressing my database dumps. It's possible that there are another option or value that might improve the compression ratio, by these are the ones that worked, the syntax for 7zr it's a little messy...

list files recursively by size

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

Change user, assume environment, stay in current dir

I've used this a number of times troubleshooting user permissions. Instead of just 'su - user' you can throw another hyphen and stay in the original directory.

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Commands using egrep (220)

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