Commands using egrep (220)
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1pidof () { ps acx | egrep -i $@ | awk '{print $1}'; }
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Yet another ps grep function, but this one includes the column headings. Show Sample Output
1psg () { ps auxwww | egrep "$1|PID" | grep -v grep } -
Ran as the postgres user, dumps each database individually. It dumps with the create statements as well, so you can just 'zcat $x-nightly.dmp.gz | psql' to reimport/recreate a database from a backup.
1for x in `psql -e\l | awk '{print $1}'| egrep -v "(^List|^Name|\-\-\-\-\-|^\()"`; do pg_dump -C $x | gzip > /var/lib/pgsql/backups/$x-nightly.dmp.gz; done -
1system_profiler SPPowerDataType | egrep -e "Connected|Charge remaining|Full charge capacity|Condition" | sed -e 's/^[ \t]*//'
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There's probably a more efficient way to do this rather than the relatively long perl program, but perl is my hammer, so text processing looks like a nail. This is of course a lot to type all at once. You can make it better by putting this somewhere:
clf () { (curl -d "q=$@" http://www.commandlinefu.com/search/autocomplete 2>/dev/null) | egrep 'autocomplete|votes|destination' | perl -pi -e 's/<a style="display:none" class="destination" href="//g;s/<[^>]*>//g;s/">$/\n\n/g;s/^ +|\([0-9]+ votes,//g;s/^\//http:\/\/commandlinefu.com\//g'; }Then, to look up any command, you can do this:clf diffThis is similar to http://www.colivre.coop.br/Aurium/CLFUSearch except that it's just one line, so more in the spirit of CLF, in my opinion. Show Sample Output1(curl -d q=grep http://www.commandlinefu.com/search/autocomplete) | egrep 'autocomplete|votes|destination' | perl -pi -e 's/a style="display:none" class="destination" href="//g;s/<[^>]*>//g;s/">$/\n\n/g;s/^ +//g;s/^\//http:\/\/commandlinefu.com\//g' -
just bored here at work ... if your are daring ... add '| bash' .... enjoy require 'ruby' Show Sample Output
1curl -s http://www.commandlinefu.com/commands/browse|egrep '("Fin.*and"|<div class="command">.*</div>)'|sed 's/<[^<]*>//g'|ruby -rubygems -pe 'require "cgi"; $_=sprintf("\n\n%-100s\n\t#%-20s",CGI.unescapeHTML($_).chomp.strip, gets.lstrip) if $.%2' -
better integration. works on all Unices works one bash and ksh. Show Sample Output
1function catv { egrep -v "^$|^#" ${*} ; } -
Work for me on CentOS, grep and print ip addresses of ssh bruteforce attempts Show Sample Output
1egrep 'Failed password for invalid' /var/log/secure | awk '{print $13}' | uniq -
Of course, you can adjust "Maildir" to your config... Show Sample Output
1find ~/Maildir/ -mindepth 1 -type d | egrep -v '/cur$|/tmp$|/new$' | xargs -
1nmap -sP <subnet>.* | egrep -o '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' > results.txt ; for IP in {1..254} ; do echo "<subnet>.${IP}" ; done >> results.txt ; cat results.txt | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | uniq -u
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lists all files that are opened by processess named $processname egrep 'w.+REG' is to filter out non file listings in lsof, awk to get the filenames, and sort | uniq to remove duplciation Show Sample Output
1lsof -c $processname | egrep 'w.+REG' | awk '{print $9}' | sort | uniq -
This shows you which files are most in need of commenting (one line of output per file)
1find ./ -name *.h -exec egrep -cH "// | /\*" {} \; | awk -F':' '{print $2 ":" $1}' | sort -gr -
Will automatically take the size of the file but longer, usefull only if in an function.
1dd if=FILE | pv -s $(stat FILE | egrep -o "Size: [[:digit:]]*" | egrep -o "[[:digit:]]*") | dd of=OUTPUT -
Look mah! All pipes
1ps ax | egrep "*.exe|*exe]" | awk '{ print $1 }' | xargs kill -
1egrep -v "^$|^#" file
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Say your dependencies specified in your Makefile (or dates on your source files) is causing 'make' to skip some source-files (that it should not) or on the other other end, if it is causing make to always build some source-files regardless of dates of target, then above command is handy to find out what 'make' thinks of your date v/s target date-wise or what dependencies are in make's view-point. The egrep part removes the extra noise, that you might want to avoid. Show Sample Output
1make -d | egrep --color -i '(considering|older|newer|remake)' -
Advanced revision to the command 8776 . This revision follows symbolic links. The quotation-marks surrounding $(which $1) allows for graceful handling of errors ( ie. readlink does not complain incase 'which' command generates (null) output) Show Sample Output
1whichpkg () { dpkg -S $1 | egrep -w $(readlink -f "$(which $1)")$; } -
Get all URLs from website via Regular Expression... You must have lynx installed in your computer to execute the command. --> lynx --dump "" | egrep -o "" - Must substitute it for the website path that you want to extract the URLs - Regular Expression that you wanna filter the website Show Sample Output
1lynx --dump "http://www.google.com.br" | egrep -o "http:.*" -
Hide comments and empty lines, included XML comments, Show Sample Output
1nocomments () { cat $1 | egrep -v '^[[:space:]]*#|^[[:space:]]*$|^[[:space:]]*;' | sed '/<!--.*-->/d' | sed '/<!--/,/-->/d'; } -
Command is properly working on HP-UX 11.31 Show Sample Output
1for i in `netstat -rn|egrep -v "Interface|Routing"|awk '{print $5}'`;do ifconfig $i;done -
First get a api key for google url shortner from here https://developers.google.com/url-shortener/ Then replace the API_KEY in the command Show Sample Output
1shorty () { curl -s https://www.googleapis.com/urlshortener/v1/url\?key\=API_KEY -H 'Content-Type: application/json' -d '{"longUrl": "'"$1"'"}' | egrep -o 'http://goo.gl/[^"]*' } -
Simple TCPDUMP grepping for common unsafe protocols (HTTP, POP3, SMTP, FTP) Show Sample Output
1tcpdump port http or port ftp or port smtp or port imap or port pop3 -l -A | egrep -i 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:|pass |user ' --color=auto --line-buffered -B20 -
1egrep -v '(\t)?#.*|^$' /etc/apache2/sites-available/default
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1tcpdump -i eth0 port http or port smtp or port imap or port pop3 -l -A | egrep -i 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|userna me:|password:|login:|pass |user '
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Enhanced version: fixes sorting by human readable numbers, and filters out non MB or GB entries that have a G or an M in their name.
1du --max-depth=1 -h * |sort -h -k 1 |egrep '(M|G)\s' - < 1 2 3 4 5 > Last ›
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