Commands using grep (1,935)
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Grep for: >> non-empty lines : denoted by -v -e '^$' >> that do not start with # (comments) or : denoted by -v -e '^[#\]' >> and does not include : denoted by -v -e '\' (Note that we use -v only once)
0grep -v -e '^$' -e '^[#\[]' -e '\/' some_file -
Grep for string in all files in a folder, get only the names of the file, making the file list uniq, then assingning all the file names to a variable in awk & printing on STDOUT
0grep -nri "pattern_to_search" folder_name/ | awk -F ":" '{print $1}' | uniq | awk 'BEGIN {f=""} {f = f" "$0} END {print f}' -
Shows the WiFi signal strength without having to display thousands of lines Show Sample Output
0while i=1; do echo -ne 'Wifi signal strength:' $(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | grep CtlRSSI | awk {'print $2'}) '\r'; sleep 0.5; done -
Get an approximation of who the workstation is assigned to. You can wrap it in su - "$()" if you want to log into a shell as that user. Show Sample Output
0last | grep -i console | grep -iv 'root' | cut -f 1 -d ' ' | sort | uniq -c | sort -nr | awk '{print $2}' | head -1 -
0eval `cli53 list |grep Name | sed "s/\.$//g" | awk '{printf("echo %s; cli53 export %s > %s;\n", $2, $2, $2);}'`
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0docker ps -a | grep Exit | awk -F " " '{ print $1 }' | xargs docker rm {}
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0find . -exec grep -H "<expression>" {} \;
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When searching for strings in a directory and all sub-directories. -H shows the filename. The find command is great but it has some weird syntax.
0find ./ -type f -exec grep -H <string> {} \; -
0git diff --name-only origin/master.. | grep _spec.rb | xargs rspec
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0docker ps -a | grep "Exited" | awk '{print $1}' | xargs docker rm
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0lsof -a -d 1-99 -Fn / | grep ^n | cut -b2- | sort | uniq -c | sort -n
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Some times firefox run a plugin named "plugin-containe". It sometimes take so much cpu that it is impossible to keep browsing. When this happens, one can simply kill the process. If the process does not exist, the command returns an innocuous error message.
0kill -9 `top -b -n 1 | grep plugin-containe | awk '{print $1}'` -
0echo or cat something | grep -Po '(?<=text_before).*(?=text_after)'
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See how many people are following you (or anyone) on Twitter.
followers cadejscrogginsShow Sample Output0followers() { curl -s https://twitter.com/$1 | grep -o '[0-9,]* Followers'; } -
by default, will output the whole line on which 'word' has been found
0grep word file.txt -
0ls -1 /proc/$(ps ax | grep <Process Name> | head -n 1 | awk '{print $1;}')/task | tail -n +2
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Quick way to get the URL of the most recent audio file out of a podcast xml feed without any fancy xml parsing tools. Just curl, grep and head
0mpc add `curl -s http://link.to/podcast/feed.xml | grep -o 'https*://[^"]*mp3' | head -1` -
0man -a --regex "byobu" |grep --color=always -i3P 'key[a-z-]*?s' | less -R
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Someone quoted Pooh in an init script. Let's see it! (Probably only works on Debian & friends) Show Sample Output
0grep -Pooh .*t..r,.* /etc/init.d/* -
0find /proc/*/fd -ls | grep '(deleted)'
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0find / -name \*.php -exec grep -Hn preg_replace {} \;|grep /e|grep POST
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If this matches any files on your web server expect to find allot of malware spread throughout your server folders. Seems to target wordpress sites. Be sure to check your themes/theme-name/header.php files manually for various redirect scripting usually in the line right above the close head tag. Good luck! Show Sample Output
0find / -name \*.php -exec grep -Hn .1.=.......0.=.......3.=.......2.=.......5.= {} \; -
Just added a little url encoding with sed - urls with spaces don't work well - this also works against instead of enclosure and adds a sample to show that you can filter against links at a certain domain Show Sample Output
0wget -q -O- http://www.yourfeed.com/rss | grep -o "<link[ -~][^>]*" | grep -o "http://www.myfeed.com[ -~][^\"]*" | sed "s: :%20:g" | xargs wget -c -
1. First we get the `item_id` for that `comment`. Adapt the -C[N] parameter for your use. 2. Then we show the bookmark's `title` (or `url`). With that in your hand it's a matter of seconds to open Firefox's library and find the bookmark. Handy for eg. forensics or better sanitize of a place.sqlite before sharing it (on the cloud). It sure has room for improvement. Show Sample Output
0sqlite3 -list places.sqlite 'SELECT item_id, content FROM moz_items_annos ;' | grep -A9 "string" ; sqlite3 places.sqlite 'SELECT title FROM moz_bookmarks WHERE .fk = <item_id number> ;' -
0find <dir> -type f -exec grep -i -H <string> {} \;
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