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

Commands tagged grep from sorted by
Terminal - Commands tagged grep - 360 results
svn add $(svn st|grep ^\?|cut -c2-)
2010-01-28 09:48:46
User: inkel
Functions: cut grep
Tags: bash svn grep cut
0
Up
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add all files not under version control to repository

This version makes uses of Bash shell expansion, so it might not work in all other shells.

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grep -E '^(cn|mail):' file.ldif | sed -e 's/^[a-z]*: //'
2010-01-27 22:29:02
User: linuxnetbook
Functions: grep sed
Tags: sed grep
0
Up
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Extract names and email addresses from LDIF files
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renice +5 -p $(pidof <process name>)
2010-01-19 22:16:24
User: 0x2142
Functions: pidof renice
Tags: awk grep nice awk grep renice
4
Up
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renice by name
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grep -rHi searchphrase *.php
2010-01-15 00:23:25
User: psybermonkey
Functions: grep
Tags: grep find text
2
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Find all files containing a word

shorter :p

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grepp() { [ $# -eq 1 ] && perl -00ne "print if /$1/i" || perl -00ne "print if /$1/i" < "$2";}
2010-01-12 04:30:15
User: eightmillion
Functions: perl
Tags: perl grep function
13
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Grep by paragraph instead of by line.

This is a command that I find myself using all the time. It works like regular grep, but returns the paragraph containing the search pattern instead of just the line. It operates on files or standard input.

grepp <PATTERN> <FILE>

or

<SOMECOMMAND> | grepp <PATTERN>
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$class=ExampleClass; $path=src; for constant in `grep ' const ' $class.php | awk '{print $2;}'`; do grep -r "$class::$constant" $path; done
2009-12-24 11:32:24
User: BluesDragon
Functions: awk grep
Tags: awk grep PHP
-2
Up
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Find all uses of PHP constants in a set of files
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php -i | grep php.ini
2009-12-23 15:52:20
User: jemmille
Functions: grep
Tags: bash grep PHP
5
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Find the location of the currently loaded php.ini file

Quick and easy way to find out which php.ini file is being used. Especially useful if you just need to find the location of the file for editing purposes.

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
sed -e 's/{"url":/\n&/g' ~/.mozilla/firefox/*/sessionstore.js | cut -d\" -f4
2009-12-10 04:31:31
User: cfajohnson
Functions: cut sed
Tags: grep pcre
-1
Up
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Extract all urls from the last firefox sessionstore.js file used.
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grep -oP '"url":"\K[^"]+' $(ls -t ~/.mozilla/firefox/*/sessionstore.js | sed q)
2009-12-09 20:34:32
User: sputnick
Functions: grep ls sed
Tags: sed grep firefox pcre
0
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Extract all urls from the last firefox sessionstore.js file used.

Require "grep -P" ( pcre ).

If you don't have grep -P, use that :

grep -Eo '"url":"[^"]+' $(ls -t ~/.mozilla/firefox/*/sessionstore.js | sed q) | cut -d'"' -f4
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MyIps(){ echo -e "local:\n$(ifconfig $1 | grep -oP 'inet (add?r:)?\K(\d{1,3}\.){3}\d{1,3}')\n\npublic:\n$(curl -s sputnick-area.net/ip)"; }
2009-12-06 22:52:31
User: sputnick
Functions: echo
Tags: grep curl ip address pcre
1
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Show local/public IP adresses with or without interface argument using a shell function for Linux and MacOsX

Like the tiltle said, you can use an argument too ( the interface )

MyIps eth0

will show only the IP of this interface and the public IP

( tested with Linux )

You can add that function in ~/.bashrc, then

. ~/.bashrc

Now you are ready to call this function in all your terms...

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printf "%s\n" !(pattern) ## ksh, or bash with shopt -s extglob
2009-11-26 14:09:56
User: cfajohnson
Functions: bash printf
Tags: ls grep
-1
Up
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List files that DO NOT match a pattern

There's no need for ls or grep; printf is builtin to most modern shells

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ls *[^p][^a][^t]* ; # or shopt -s extglob; ls !(*pattern*)
2009-11-25 01:19:02
User: unixmonkey7109
Functions: ls
Tags: ls grep
-3
Up
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List files that DO NOT match a pattern

no need to use grep.

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ls | grep -vi pattern
2009-11-24 20:39:53
User: haivu
Functions: grep ls
Tags: ls grep
-1
Up
Down
List files that DO NOT match a pattern
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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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grep -c '^From ' mbox_file
2009-11-07 03:31:05
User: drewk
Functions: grep
Tags: grep mbox
-1
Up
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Count emails in an MBOX file
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grep "model name" /proc/cpuinfo
2009-11-05 05:23:30
User: getkaizer
Functions: grep
Tags: grep cpuinfo
3
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List the CPU model name

Extracts the model name of the CPU and displays it on screen.

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ifconfig eth1 | grep inet\ addr | awk '{print $2}' | cut -d: -f2 | sed s/^/eth1:\ /g
2009-11-03 19:26:40
User: TuxOtaku
Functions: awk cut grep ifconfig sed
Tags: ifconfig sed awk grep cut regex networking
2
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Grab an interface's IP from ifconfig without screen clutter

Sometimes, you don't really care about all the other information that ifconfig spits at you (however useful it may otherwise be). You just want an IP. This strips out all the crap and gives you exactly what you want.

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set | fgrep " ()"
2009-10-22 17:48:54
User: haivu
Functions: fgrep set
Tags: bash grep function
1
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List bash functions defined in .bash_profile or .bashrc

If you issue the "set" command, you'll see a list of variables and functions. This command displays just those functions' names.

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argv=("[email protected]"); rest=${argv[@]:1}; less -JMN +"/$1" `grep -l $1 $rest`
2009-10-16 17:36:16
User: lassel
Functions: less
Tags: bash less log grep
1
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Less a grep result, going directly to the first match in the first file

Really useful way to combine less and grep while browsing log files.

I can't figure out how to make it into a true oneliner so paste it into a script file called lgrep:

Usage:

lgrep searchfor file1 [file2 file3]

Advanced example (grep for an Exception in logfiles that starts with qc):

lgrep Exception $(find . -name "qc*.log")

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h() { if [ -z "$1" ]; then history; else history | grep "[email protected]"; fi; }
2009-10-13 21:49:37
User: haivu
Functions: grep
Tags: bash grep
7
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Display the history and optionally grep

Place this in your .bash_profile and you can use it two different ways. If you issue 'h' on its own, then it acts like the history command. If you issue:

h cd

Then it will display all the history with the word 'cd'

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sh -c 'S=askapache R=htaccess; find . -mount -type f|xargs -P5 -iFF grep -l -m1 "$S" FF|xargs -P5 -iFF sed -i -e "s%${S}%${R}%g" FF'
2009-10-02 05:03:10
User: AskApache
Functions: find grep sed sh xargs
Tags: cpu usage sed xargs grep multiple background nice search and replace sh processes
10
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FAST Search and Replace for Strings in all Files in Directory

I needed a way to search all files in a web directory that contained a certain string, and replace that string with another string. In the example, I am searching for "askapache" and replacing that string with "htaccess". I wanted this to happen as a cron job, and it was important that this happened as fast as possible while at the same time not hogging the CPU since the machine is a server.

So this script uses the nice command to run the sh shell with the command, which makes the whole thing run with priority 19, meaning it won't hog CPU processing. And the -P5 option to the xargs command means it will run 5 separate grep and sed processes simultaneously, so this is much much faster than running a single grep or sed. You may want to do -P0 which is unlimited if you aren't worried about too many processes or if you don't have to deal with process killers in the bg.

Also, the -m1 command to grep means stop grepping this file for matches after the first match, which also saves time.

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ack --pager='less -r'
2009-09-25 13:01:58
User: unixmonkey5780
Tags: color grep GNU/Linux
0
Up
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Colorized grep in less
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grep -RnisI <pattern> *
2009-09-22 15:09:43
User: birnam
Functions: grep
Tags: bash grep
48
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Search for a <pattern> string inside all files in the current directory

This is how I typically grep. -R recurse into subdirectories, -n show line numbers of matches, -i ignore case, -s suppress "doesn't exist" and "can't read" messages, -I ignore binary files (technically, process them as having no matches, important for showing inverted results with -v)

I have grep aliased to "grep --color=auto" as well, but that's a matter of formatting not function.

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xev -id `xwininfo | grep 'Window id' | awk '{print $4}'`
2009-09-19 22:47:16
User: ktoso
Functions: awk grep
Tags: xwindows grep X Window xev
2
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Track X Window events in chosen window

After executing this, click on a window you want to track X Window events in.

Explaination: "xev will track events in the window with the following -id, which we get by greping window information obtained by xwininfo"

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ss -p
2009-09-19 21:55:01
User: Escher
Tags: bash grep netstat internet ss
51
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Show apps that use internet connection at the moment. (Multi-Language)

for one line per process:

ss -p | cat

for established sockets only:

ss -p | grep STA

for just process names:

ss -p | cut -f2 -sd\"

or

ss -p | grep STA | cut -f2 -d\"
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