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Commands using grep

Commands using grep from sorted by
Terminal - Commands using grep - 1,375 results
ip a s eth0 | grep "inet " | head -n 1 | awk '{print $2}' | cut -f1 -d'/'
2012-07-16 07:54:43
User: thelan
Functions: awk cut grep head
Tags: IP
-4
Up
Down
Get the IP address

Get the first IPv4 address of an interface

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ifconfig | grep "inet" | tail -1 | awk '{print $2}'
2012-07-13 01:27:59
User: wotan
Functions: awk grep ifconfig tail
Tags: ifconfig
0
Up
Down
Get the IP address

more variety

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ifconfig | grep "inet" | grep "broadcast" | awk '{print $2}'
2012-07-13 01:24:42
User: wotan
Functions: awk grep ifconfig
Tags: ifconfig
0
Up
Down
Get the IP address
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ifconfig | grep "inet addr" | cut -d":" -f2 | cut -d" " -f1
2012-07-13 00:38:38
User: liushuililuo
Functions: cut grep ifconfig
Tags: ifconfig
-3
Up
Down
Get the IP address
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git log --summary 223286b.. | grep 'Author:' | wc -l
2012-07-10 13:20:02
User: wr8cr8
Functions: grep wc
0
Up
Down
Count git commits since specific commit
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smbclient -N -gL \\SambaServer 2>&1 | grep -e "Disk|" | cut -d'|' -f2
2012-07-07 04:45:06
User: dynaguy
Functions: cut grep
-2
Up
Down
Get a list of all browsable Samba shares on the target server.
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ps auxww | grep application | grep processtobekilled | gawk '{print $2}' | grep -v grep | xargs kill -9
2012-07-03 20:37:56
User: j0sh10
Functions: gawk grep kill ps xargs
0
Up
Down
Command to kill PID

You can also use gawk:

ps auxww | gawk '/application/' | gawk '/processtobekilled/' | gawk '{print $2}' | grep -v grep | xargs kill -9

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cal | grep -E --color "\b`date +%e`\b|$"
2012-06-27 20:30:40
User: donjuanica
Functions: cal grep
Tags: calendar
0
Up
Down
Print a monthly calendar with today's date highlighted

The cal command is handy, but sometimes you want to quickly see today's date highlighted. That's why I came up with this quick command.

Much like http://www.commandlinefu.com/commands/view/1342/show-this-months-calendar-with-todays-date-highlighted but cleaner and more succinct.

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grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
2012-06-27 08:13:14
User: kaplan2539
Functions: grep
0
Up
Down
grep for ip4 addresses
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for i in G M K; do du -hx /var/ | grep [0-9]$i | sort -nr -k 1; done | less
2012-06-26 22:57:17
User: jlaunay
Functions: du grep sort
Tags: du
1
Up
Down
du and sort to find the biggest directories in defined filesystem

This command give a human readable result without messing up the sorting.

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grep -c "^$" filename
2012-06-26 17:43:17
User: ankush108
Functions: grep
Tags: grep count empty
0
Up
Down
Count empty lines using grep

This pattern matches empty lines in the file and -c gives the count

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netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n
2012-06-26 08:29:37
User: krishnan
Functions: awk cut grep netstat sort uniq
Tags: sort awk IP grep netstat connection range user
0
Up
Down
Number of connections per IP with range 24

cut -f1,2 - IP range 16

cut -f1,2,3 - IP range 24

cut -f1,2,3,4 - IP range 24

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find /path/to/dir -type f -print0 | xargs -0 grep -l "foo"
2012-06-19 16:27:30
User: apotheos
Functions: find grep xargs
Tags: find xargs grep find text recursive
0
Up
Down
List files containing given search string recursively
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svn status | grep "^M" | while read entry; do file=`echo $entry | awk '{print $2}'`; echo $file; svn revert $file; done
2012-06-17 16:01:06
User: wsams
Functions: awk echo grep read
Tags: svn awk grep svn revert
0
Up
Down
Revert all modified files in an SVN repo

This command allows you to revert every modified file one-by-one in a while loop, but also after "echo $file;" you can do any sort of processing you might want to add before the revert happens.

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curl -s kernel.org | grep '<strong>' | head -3 | tail -1 | cut -d'>' -f3 | cut -d'<' -f1
2012-06-15 21:28:42
User: mdix
Functions: cut grep head tail
0
Up
Down
Get current stable kernel version string from kernel.org
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find . \( -name "*cpp" -o -name "*hpp" \) -exec grep -Hn -E "043[eE]|70[Dd]7" \{\} \;
2012-06-15 12:55:23
User: kaplan2539
Functions: find grep
0
Up
Down
search in all cpp / hpp files using egrep
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grep -r -Z -l "<text>" . | xargs -0 echo rm
2012-06-14 08:09:46
User: limonte
Functions: echo grep xargs
Tags: grep
4
Up
Down
delete files containing matching text

-r recursively

-Z zero byte after each file name instead of the usual newline

-l only filenames

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ls -ltr |grep 'May 12'|awk '{print $9;}'|xargs rm -v
2012-06-04 12:31:41
User: harpo
Functions: awk grep ls rm xargs
-2
Up
Down
grep files by date and delete

executed on SLES 11.2

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ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'
2012-05-30 14:50:13
User: Koobiac
Functions: grep ls sed
Tags: sed ls grep tree
-1
Up
Down
Simulate a tree command
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mysqlbinlog <logfiles> | grep exec | grep end_log_pos | cut -d' ' -f2- | cut -d: -f-2 | uniq -c
2012-05-30 09:42:21
User: theist
Functions: cut exec grep uniq
Tags: uniq grep cut mysqlbinlog
1
Up
Down
mysql bin log events per minute

shows number of mysql bin log events (which are mysql server events) per minute, useful to check stress times postmortem

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mysqlbinlog <logfiles> | grep exec | grep end_log_pos | grep -v exec_time=0 | sed 's/^\(.*exec_time=\([0-9]\+\).*\)/\2 - \1 /' | sort -n
2012-05-30 09:38:02
User: theist
Functions: exec grep sed sort
Tags: sed grep mysqlbinlog
0
Up
Down
mysqlbinlog headers sorted by event time

Shows sorted by query time, the headers of mysqlbinlog entries. Then is easy to locate the heavier events on the raw log dump

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du -cah /path/to/folder/ | grep total
2012-05-29 23:30:03
User: ekinertac
Functions: du grep
0
Up
Down
human readable total directory size
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for foo in <list of directories>; do while find $foo -type d -empty 2>/dev/null| grep -q "."; do find $foo -type d -empty -print0 | xargs -0 rmdir; done; done
2012-05-23 08:09:16
User: ClashTheBunny
Functions: find grep xargs
Tags: unix directories rmdir empty
0
Up
Down
Recursively remove all empty directories

This will check if there are any empty directories, or newly emptied directories, in a list of directories. It will then delete all of those directories. It works with gnu find and OSX/BSD find.

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ls -al | grep ^d
2012-05-21 17:39:23
User: christo
Functions: grep ls
0
Up
Down
Get ls to only show directories under .

Cleaner than adding -p to ls ( eg ls -alp ), this will tell ls to only output directories in the file listing, whilst maintaining all the usual other column elements of the ls output.

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members () { dscl . -list /Users | while read user; do printf "$user "; dsmemberutil checkmembership -U "$user" -G "$*"; done | grep "is a member" | cut -d " " -f 1; };
2012-05-20 11:34:33
User: eduo
Functions: cut grep printf read
Tags: function osx group dsmemberutil
-1
Up
Down
OSX - Function to list all members for a given group

Group membership in OS X is a mish-mash of standards that end up meaning there's almost a half-dozen of ways to belong to a group, what with group inheritance and automatic assignment. This means there's no easy command to find out all groups a user belongs to. The only sensible way then is to list all users and then query each user for membership.

NOTE: This is a function. Once input you can execute it by calling with a groupname.

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