Commands tagged grep (409)
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Uses xargs to call the second grep with the first grep's results as arguments
-1grep -l bar *.log | xargs grep -l foo -
Unless you have files that include 'svn' in them, this should provide enough information to be useful. If you need to be certain, add the leading dot in the search pattern
-1find . | grep -v svn -
-1curl -s http://www.last.fm/user/$LASTFMUSER | grep -A 1 subjectCell | sed -e 's#<[^>]*>##g' | head -n2 | tail -n1 | sed 's/^[[:space:]]*//g'
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Substitute that 724349691704 with an UPC of a CD you have at hand, and (hopefully) this oneliner should return the $Artist - $Title, querying discogs.com. Yes, I know, all that head/tail/grep crap can be improved with a single sed command, feel free to send "patches" :D Enjoy! Show Sample Output
-1wget http://www.discogs.com/search?q=724349691704 -O foobar &> /dev/null ; grep \/release\/ foobar | head -2 | tail -1 | sed -e 's/^<div>.*>\(.*\)<\/a><\/div>/\1/' ; rm foobar -
-1curl ifconfig.me
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Deletes capistrano-style release directories (except that there are dashes between the YYYY-MM-DD) Show Sample Output
-1find . -maxdepth 1 -type d | grep -Pv "^.$" | sort -rn --field-separator="-" | sed -n '3,$p' | xargs rm -rf -
Same as 7272 but that one was too dangerous so i added -P to prompt users to continue or cancel Note the double space: "...^ii␣␣linux-image-2..." Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel).
-1sudo aptitude remove -P $(dpkg -l|awk '/^ii linux-image-2/{print $2}'|sed 's/linux-image-//'|awk -v v=`uname -r` 'v>$0'|sed 's/-generic//'|awk '{printf("linux-headers-%s\nlinux-headers-%s-generic\nlinux-image-%s-generic\n",$0,$0,$0)}') -
chrome only lets you export in html format, with a lot of table junk, this command will just export the titles of the links and the links without all that extra junk Show Sample Output
-1grep -E '<DT><A|<DT><H3' bookmarks.html | sed 's/<DT>//' | sed '/Bookmarks bar/d' | sed 's/ ADD_DATE=\".*\"//g' | sed 's/^[ \t]*//' | tr '<A HREF' '<a href' -
There's nothing particularly novel about this combination of find, grep, and wc, I'm just putting it here in case I want it again. Show Sample Output
-1find . -name '*.java' -o -name '*.xml' | grep -v '\.svn' | xargs wc -l -
fileName /path/to/file.extquivalent tobasename /path/to/file.extShow Sample Output-1fileName() { echo "$1" | grep -o "[^/]*$"; } -
This will recursively go through every file under the current directory showing all lines containing "TODO" as well as 10 lines after it. The output will be marked with line numbers to make it easier to find where the TODO is in the actual file.
-1grep -rnA 10 TODO * -
calls grep on all non-binary files returned by find on its current working directory Show Sample Output
-1#!/bin/bash find | grep -P -v "(class)|(zip)|(png)|(gz)|(gif)|(jpeg)|(jpg)" | xargs -I @ grep -H $1 @ -
needs grep what supports '--recursive' Show Sample Output
-1grep -Ilr "<?php" . -
-1pcregrep --color -M -N CRLF -e "SQLEngine\.\w+\W*\([^\)]*\)" -r --include='\.java$'
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simple table
-1for k in `git branch -r|awk '{print $1}'`;do echo -e `git show --pretty=format:"%Cgreen%ci_%C(blue)%c r_%Cred%cn_%Creset" $k|head -n 1`$k;done|sort -r|awk -F"_" '{printf("%s %17s %-22s %s\n",$1,$2,$3,$4)}' -
On wired connections set 'eth0' instead of 'wlan0'
-1sudo ifconfig wlan0 | grep inet | awk 'NR==1 {print $2}' | cut -c 6- -
Open Port Check
-1netstat -an | grep --color -i -E 'listen|listening' -
-1cat $HISTFILE | grep command
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-1ls --color=never -1| grep -E "[0-9]{4}"|sed -re "s/^(.*)([0-9]{4})(.*)$/\2 \1\2\3/" | sort -r
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-1find . -name *.properties -exec /bin/echo {} \; -exec cat {} \; | grep -E 'listen|properties'
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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
-1psg(){ ps aux | grep -v grep | egrep -e "$1|USER"; } -
-1find . -name "*.ipynb" -exec grep -l "symspellpy" {} \;
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Replace "en1" with your network interface (on OS X, usually en0, en1, eth0, etc..) Show Sample Output
-2sudo tcpdump -i en1 -n -s 0 -w - | grep -a -o -E "Host\: .*|GET \/.*" -
Greps located files for an expression. Example greps all LaTeX files for 'foo':
locate *.tex | xargs grep fooTo avoid searching thousands of files with grep it could be usefull to test first how much files are returned by locate:locate -c *.tex-2locate searchstring | xargs grep foo -
grep's -c outputs how may matches there are for a given file as "file:N", cut takes the N's and awk does the sum. Show Sample Output
-2grep -rc logged_in app/ | cut -d : -f 2 | awk '{sum+=$1} END {print sum}' - ‹ First < 13 14 15 16 17 >
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