Commands using grep (1,935)
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Shows a single line per interface (device), with its IPv4 settings. Shorter command, better readability in output. Show Sample Output
-3ip addr|grep "inet " -
Gets the internal and external IP addresses of all your interfaces, or the ones given as arguments Show Sample Output
-3ips(){ for if in ${1:-$(ip link list|grep '^.: '|cut -d\ -f2|cut -d: -f1)};do cur=$(ifconfig $if|grep "inet addr"|sed 's/.*inet addr:\([0-9\.]*\).*/\1/g');printf '%-5s%-15s%-15s\n' $if $cur $(nc -s $cur sine.cluenet.org 128 2>/dev/null||echo $cur);done;} -
-3TIMEUNIT=$( cat a | grep -n "timescale" | awk -F ":" '{ print $1 } ' )
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grabs your local IP Address. Show Sample Output
-3ifconfig -a|grep Bcast:|cut -d\: -f2|awk '{print $1}' -
This command toggles the touchpad on and off, when it's on, the right side scroll strip (annoying) and the tap-clicking are disabled, you can change this by changing occurances of 2 in the command to 0. this whole command can then be given a keyboard shortcut so that the touchpad is disableable without using a special fn key (which linux doesn't recognize on some computers) or a seperate button.
-3if [ $(synclient -l | grep TouchpadOff | awk '{print $3}') = "2" ]; then synclient TouchpadOff=1; elif [ $(synclient -l | grep TouchpadOff | awk '{print $3}') == "1" ]; then synclient TouchpadOff=2; else synclient TouchpadOff=2; fi -
file displays a files type the -L flag means follow sym-links (as libraries are often sym-linked to another this behavior is likely preferred) more complex behavior (*two* grep commands!) could be used to determine if the file is or is not a shared library.
-3file -L <library> | grep -q '64-bit' && echo 'library is 64 bit' || echo 'library is 32 bit' -
-3tune2fs -l $(df -P / | tail -n1 | cut -d' ' -f1 ) | grep 'Filesystem created:'
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gets the last number of the mac address to use it for other stuff Show Sample Output
-3UNIQUE_BY_MAC=$(ifconfig |grep eth0|awk '{ print strtonum("0x"substr($6,16,2)) }') -
-3ps ux|grep <process name>|awk '{print $2}'|xargs -n 1 kill
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This will get the mac address of the eth0 and change lowercase to uppercase. The sed command removed the colons.
-3ifconfig eth0 | grep 'HWaddr' | awk '{print $5}' | tr 'a-z' 'A-Z' | sed -e 's/://g' -
-3TODAY=`date +"%b %d"`;ls -l | grep "$TODAY" | awk '{print $9}'
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-3ls -la | grep $(date +%Y-%m-%d) | egrep -v -e '\.{1,2}' | sed "s/.*\:[0-9]\{2\} \(.\+\)$/\\1/g"
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Get windows version with servicepack and hostname Show Sample Output
-3wmic -U DOMAIN/user --password='password' //IP_HOST "select Caption,CSDVersion,CSName from Win32_OperatingSystem" | grep Windows -
We can put this inside a function:
fxray() { curl -s http://urlxray.com/display.php?url="$1" | grep -o '<title>.*</title>' | sed 's/<title>.*--> \(.*\)<\/title>/\1/g'; };fxray http://tinyurl.com/demo-xrayShow Sample Output-3curl -s http://urlxray.com/display.php?url=http://tinyurl.com/demo-xray | grep -o '<title>.*</title>' | sed 's/<title>.*--> \(.*\)<\/title>/\1/g' -
-3sudo dpkg -P $(dpkg -l | grep -i adobeair)
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short enough to be tweetable Show Sample Output
-3ifconfig | grep "inet\ " | grep -v "127.0" | sed -e 's/inet\ addr://g' | sed -e 's/Bcast:/\ \ \ \ \ \ \ /g' | cut -c 1-29 | sed -e 's/\ //g' -
most usefull when creating batch scripts using several usb drives and some commands like mkntfs needs a device name the -w option for grep is here to filter lines when you have multiple drives with the same volume label. Without this option, the grep command will return /media/KINGSTON /media/KINGSTON_ /media/KINGSTON__ Show Sample Output
-3df | grep -w /media/KINGSTON | awk {'print $1'} -
Download a bunch of random animated gifs from http://gifbin.com/
-3site="http://gifbin.com/"; for i in $(wget -qO- "$site"random| sed -r "s/^.*(bin\/.+\.gif).*$/\1/m" | grep "^bin"); do wget -c "$site$i"; filename=`basename $i`; [ `identify $filename | wc -l` -gt 1 ] || rm -f $filename; done -
This will show the locations, in order of preference, that MySQL will look for a configuration file Show Sample Output
-3mysql -? | grep ".cnf" -
-3grep -Pv '^\S*(#|$)'
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Useful after a complete system update (without a new kernel) when you want to know, which processes need to be restarted Show Sample Output
-3lsof | grep 'DEL.*lib' | cut -f 1 -d ' ' | sort -u -
-3apache2ctl -V | grep SERVER_CONFIG_FILE
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Original submitter's command spawns a "grep" process for every file found. Mine spawns one grep with a long list of all matching files to search in. Learn xargs, everyone! It's a very powerful and always available tool.
-3find . -name "*.[ch]" -print | xargs grep -i -H "search phrase" -
-3wget http://checkip.dyndns.org/ -q -O - | grep -Eo '\<[[:digit:]]{1,3}(\.[[:digit:]]{1,3}){3}\>'
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* ps -ef # list running processes * grep string * pull the process names from 8th field * cut and delimiter '/' * print 4th field * get rid of trailing grep * for loop killall -9 $i which is the process name Show Sample Output
-3for i in `ps -ef | grep tracker | awk '{print $8}' | cut -d'/' -f4 | grep -v grep`; do killall -9 $i; done - ‹ First < 71 72 73 74 75 > Last ›
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