Commands using grep | commandlinefu.com

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awk, bash, curl, find, grep, Linux, sed

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Functions

Terminal - Commands using grep - 1,674 results

grep -n . datafile ;

2009-12-08 15:41:22

User: glaudiston

Functions: grep

-1

Up
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prints line numbers

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grep -Ri searchterm ~/.purple/logs/* | sed -e 's/<.*?>//g'

2009-12-07 19:38:18

User: Nostoc

Functions: grep sed

Tags: pidgin logs

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Search trought pidgin's conversation logs for "searchterm", and output the result.

will search trought pidgin conversation logs for "searchterm", and output them stripping the html tags. The "sed" command is optionnal if your logs are stored in plain text format.

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for i in `mysqladmin -h x.x.x.x --user=root -pXXXX processlist | grep <<username>>| grep <<Locked>>| awk {'print $2'}` do mysqladmin -h x.x.x.x --user=root -pXXX kill $i; done;

2009-12-06 05:46:48

User: r00t4u

Functions: awk grep kill

Up
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Kill multiple Locked connection by a single user in MYSQL DB

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ps aux| grep -v grep| grep httpd| awk {'print $2'}| xargs kill -9

2009-12-06 05:39:50

User: r00t4u

Functions: awk grep kill ps xargs

-2

Up
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Killing multiplpe process for one program like apache, wget, postfix etc.

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display http://dilbert.com$(curl -s dilbert.com|grep -Po '"\K/dyn/str_strip(/0+){4}/.*strip.[^\.]*\.gif')

2009-12-05 19:35:27

User: wizel

Functions: grep

Tags: curl display comic

Up
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Display Dilbert strip of the day

Requires display.

Corrected version thanks to sputnick and eightmillion user.

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ipcalc $(ifconfig eth0 | grep "inet addr:" | cut -d':' -f2,4 | sed 's/.+Bcast:/\//g') | awk '/Network/ { print $2 } '

2009-12-05 15:00:32

User: solarislackware

Functions: awk cut grep ifconfig sed

Tags: Network

-1

Up
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Show Network IP and Subnet

same thing as the other

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ifconfig eth0 | grep "inet:" | cut -d ":" -f2 | cut -d " " -f1

2009-12-05 02:59:18

User: guelfoweb

Functions: cut grep ifconfig

Tags: ip address

-2

Up
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Show local IP

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2009-12-05 01:19:31

User: guelfoweb

Functions: cut grep

Tags: Network

-2

Up
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Show Network IP and Subnet

Require ips and ipcalc

ifconfig -a|grep Bcast:|cut -d\: -f2|awk '{print $1}'

2009-12-04 21:00:46

User: metalx1000

Functions: awk cut grep ifconfig

Tags: ifconfig cut ip address awk grep

-3

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Return IP Address

grabs your local IP Address.

for f in *.jar; do if jar -tf $f | grep -q javax.servlet; then echo $f; fi; done

2009-12-04 20:11:36

User: wekoch

Functions: echo grep

Up
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Find file containing namespace in a directory of jar files.

You could subsitute javax.servlet for any namespace you need.

wget `lynx --dump http://xkcd.com/|grep png`

2009-12-03 23:10:22

User: metalx1000

Functions: grep wget

Tags: bash wget lynx curl function xkcd comic webcomic

Up
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View the newest xkcd comic.

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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); } '

2009-12-03 18:53:57

User: solarislackware

Functions: awk cut egrep grep

Tags: bash curl function xkcd comic webcomic

-1

Up
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View the newest xkcd comic.

Same thing just a different way to get there. You will need lynx

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echo "(Something like http://foo.com/blah_blah)" | grep -oP "\b(([\w-]+://?|www[.])[^\s()<>]+(?:$[\w\d]+$|([^[:punct:]\s]|/)))"

2009-11-28 00:41:57

User: matthewbauer

Functions: echo grep

Tags: perl regex url match url matching

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Match a URL

From http://daringfireball.net/2009/11/liberal_regex_for_matching_urls

Thought it would be useful to commandlinefuers.

xkcd(){ wget -qO- http://xkcd.com/|tee >(feh $(grep -Po '(?<=")http://imgs[^/]+/comics/[^"]+\.\w{3}'))|grep -Po '(?<=(\w{3})" title=").*(?=" alt)';}

2009-11-27 09:11:47

User: eightmillion

Functions: grep tee wget

Tags: bash curl function xkcd comic webcomic

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View the newest xkcd comic.

This function displays the latest comic from xkcd.com. One of the best things about xkcd is the title text when you hover over the comic, so this function also displays that after you close the comic.

To get a random xkcd comic, I also use the following:

xkcdrandom(){ wget -qO- dynamic.xkcd.com/comic/random|tee >(feh $(grep -Po '(?<=")http://imgs[^/]+/comics/[^"]+\.\w{3}'))|grep -Po '(?<=(\w{3})" title=").*(?=" alt)';}

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while true; do wget -r -l1 --no-clobber -A.txt http://911.wikileaks.org/files/index.html; done; cat *.txt | grep pass

2009-11-26 23:38:44

User: Cowboy

Functions: cat grep wget

-5

Up
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Passwords from 9/11 tragedy pager intercepts (Yeah! Plain text! From wikileaks.net)

http://www.reddit.com/r/reddit.com/comments/a7xpt/conspiracy_theories_commence_wikileaks_to_release/

ls | grep -vi pattern

2009-11-24 20:39:53

User: haivu

Functions: grep ls

Tags: ls grep

-1

Up
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List files that DO NOT match a pattern

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netstat | grep EST | awk '{print $5}' | sort

2009-11-24 13:38:28

User: unixoid

Functions: awk grep netstat

-2

Up
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Sorted list of established destination connections

Sometimes I need a quick visual way to determine if there is a particular server who is opening too many connections to the database machine.

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grep -H -n "pattern" *

2009-11-24 08:48:38

User: unixmonkey7109

Functions: grep

Tags: find

Up
Down

Find in all files in the current directory, just a find shorthand

if its the current directory, no need find command. just grep will do

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find ./ -name $1 -exec grep -H -n $2 '{}' ';'

2009-11-24 07:25:27

User: packetloss

Functions: find grep

Tags: find

-2

Up
Down

Find in all files in the current directory, just a find shorthand

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grep -Eio '([[:alnum:]_.-][email protected][[:alnum:]_.-]+?\.[[:alpha:].]{2,6})'

2009-11-22 21:14:49

User: fooBier

Functions: grep

Up
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extract email adresses from some file (or any other pattern)

Simply more email-adresses matched

cat /var/log/httpd/access_log | grep q= | awk '{print $11}' | awk -F 'q=' '{print $2}' | sed 's/+/ /g;s/%22/"/g;s/q=//' | cut -d "&" -f 1 | mail [email protected] -s "[your-site] search strings for `date`"

2009-11-22 03:03:06

User: isma

Functions: awk cat grep sed strings

Tags: cat bash sed awk grep cut mail httpd access_log

-2

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Checks apache's access_log file, strips the search queries and shoves them up your e-mail

It's not a big line, and it *may not* work for everybody, I guess it depends on the detail of access_log configuration in your httpd.conf. I use it as a prerotate command for logrotate in httpd section so it executes before access_log rotation, everyday at midnight.

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lsusb -v | grep -o "[0-9A-Z]{16}"

2009-11-22 00:58:00

User: matthewbauer

Functions: grep lsusb

Tags: ipod

-1

Up
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Find iPod's fwguid

This is a bit of a hack, but it will get your fwguid which is needed sometimes when using your iPod.

video=$(ls /tmp | grep -e Flash\w*); ffmpeg -i /tmp/$video -f mp3 -ab 192k ~/ytaudio.mp3

2009-11-19 09:25:10

User: aperson

Functions: grep ls

-2

Up
Down

Script to rip the audio from the youtube video you have open in firefox

Must have the video open and fully loaded.

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for item in *;do echo -n "$item - ";find "$item" -type f -print0 | xargs -0 file -iNf - | grep video | cut -d: -f1 | xargs -d'\n' /usr/share/doc/mplayer/examples/midentify | grep ID_LENGTH | awk -F= '{sum+=$2} END {print(sum/60)}'; done | grep -v ' - 0$'

2009-11-19 06:28:15

User: jnash

Functions: awk cut echo file grep xargs

Up
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Better "hours of video" summary for each file/dir in the current directory

I know this has been beaten to death but finding video files using mime types and printing the "hours of video" for each directory is (IMHO) easier to parse than just a single total. Output is in minutes.

Among the other niceties is that it omits printing of non-video files/folders

PS: Barely managed to fit it within the 255 character limit :D

find ./ -type f -print0 | xargs -0 file -iNf - | grep video | cut -d: -f1

2009-11-19 06:05:36

User: jnash

Functions: cut file find grep xargs

Up
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Find all videos under current directory

Uses mime-type of files rather than relying on file extensions to find files of a certain type.

This can obviously be extended to finding files of any other type as well.. like plain text files, audio, etc..

In reference to displaying the total hours of video (which was earlier posted in command line fu, but relied on the user having to supply all possible video file formats) we can now do better:

find ./ -type f -print0 | xargs -0 file -iNf - | grep video | cut -d: -f1 | xargs -d'\n' /usr/share/doc/mplayer/examples/midentify | grep ID_LENGTH | awk -F "=" '{sum += $2} END {print sum/60/60; print "hours"}'

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