Commands using grep (1,935)
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Replace "user/sbin/sshd" with the file you would like to check. If you are doing this due to intrusion, you obviously would want to check size, last modification date and md5 of the md5sum application itself. Also, note that "/var/lib/dpkg/info/*.md5sums" files might have been tampered with themselves. Neither to say, this is a useful command. Show Sample Output
0cat /var/lib/dpkg/info/*.md5sums|grep usr/sbin/sshd|sed 's,usr,/usr,'|md5sum -c -
`pwd` returns the current path `grep -o` prints each slash on new line perl generates the paths sequence: './.', './../.', ... `readlink` canonicalizes paths (it makes the things more transparent) `xargs -tn1` applies chmod for each of them. Each command applied is getting printed to STDERR. Show Sample Output
0pwd|grep -o '/'|perl -ne '$x.="./.";print`readlink -f $x`'|xargs -tn1 chmod 755 -
ofxGui ofxFX
0grep -hor ofx[a-zA-Z]*.h src/ | grep -o ofx[^\.]* >> addons.make -
0wget -O - "[PICASA ALBUM RSS LINK]" |sed 's/</\n</g' | grep media:content |sed 's/.*url='"'"'\([^'"'"']*\)'"'"'.*$/\1/' |awk -F'/' '{gsub($NF,"d/"$NF); print $0}'|wget -i -
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0grep -E '([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})' -o tmp
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0lsof -i -P +c 0 +M | grep -i "$1"
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Reason can be: taken, available, contains_banned_word
0if wget https://twitter.com/users/username_available?username=xmuda -q -O - | grep -q "\"reason\":\"taken\""; then echo "Username taken"; else echo "Free / Banned Name"; fi -
calculate how many different lines between two files Show Sample Output
0grep -Fvxf $(file1) $(file2) | wc -l -
This command produces no output, but its exit status is 0 ("true") if $file is text, non-0 ("false") if $file is binary (or is not accessible). Explanation: -q suppresses all the output of grep -I is the trick: if a binary file is found, it is considered a non-match -m 1: limit "output" to first match (speed up for big files) .: the match string, "." stands for any character Usage: e.g. run editor only on text files
grep -qIm 1 . $file && vi $file0grep -qIm1 . $file -
0ps aux | grep [process] | awk '{print $2}' | xargs -I % ls /proc/%/fd | wc -l
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Searched strings: passthru, shell_exec, system, phpinfo, base64_decode, chmod, mkdir, fopen, fclose, readfile Since some of the strings may occur in normal text or legitimately you will need to adjust the command or the entire regex to suit your needs.
0find ./public_html/ -name \*.php -exec grep -HRnDskip "\(passthru\|shell_exec\|system\|phpinfo\|base64_decode\|chmod\|mkdir\|fopen\|fclose\|readfile\) *(" {} \; -
A way to display directory structure Show Sample Output
0ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/' -
0grep -E/egrep 'word1.*word2|word2.*word1' "$@"
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this also can find the old command you used before
0history | tail -100 | grep cmd -
0awk '/Dec\/2012/ {print $1,$8}' logfile | grep -ivE '(.gif|.jpg|.png|favicon|.css|.js|robots.txt|wp-l|wp-term)' | sort | uniq -c | sort -rn | head -n 20
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find ip address in all files in /etc directory. can be used to find any string in any directory really
0find /etc -type f -print0 | xargs -r0 grep --color '192.168.0.1' -
If you know any two (or more) words are occurring on multiple lines in a file, using a regular expression such as this will help you find them quickly.
0grep -E "(.*)(ERROR)(.*)(FAULT)(.*)" log.txt -
0ps -A -o rss,command | grep [C]hrome | awk '{sum+=$1} END {printf("%sMB\n",sum/1024)}'
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0cat domainlist.txt | while read line; do echo -ne $line; whois $line | grep Expiration ; done | sed 's:Expiration Date::'
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Replace $USER with the username of the Reddit user in question. To get comment karma instead run...
curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "comment_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Comment Karma: "/Show Sample Output0curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "link_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Link Karma: "/ -
0more restart_weblogic.log | grep "LISTEN" | awk '{ print $7 }' | uniq | wc -l
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0svn info | grep ^URL | awk -F\/ '{print $NF}'
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0netstat -tuapen | grep LISTEN
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I use this one-liner to search my sourcecode to find out where tags are named and since there's no easy way in XCode to see what values have already been used. Show Sample Output
0grep '.tag =' <file> | awk '{print $3}' | awk 'sub(/[;]/, x)' | sort -n -
This command is useful for searching through a whole folder worth of pdf files. Show Sample Output
0for i in *.pdf; do echo --------$i-------; echo; pdftotext $i - | grep -i Yourpattern; done - ‹ First < 46 47 48 49 50 > Last ›
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