Commands using grep (1,935)
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-5ps ax | grep <processname> | grep -v grep | awk '{print $1}' | sudo xargs kill -9
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You can use this to loop any command to periodically see the output.
while true; do [YOUR COMMAND HERE]; sleep [# of seconds]; done;Alternatively, you can put it in a simple shell script to save typing! #/!bin/bash while true; do $1; sleep $2; done;/path/to/script.sh "ifconfig eth0 | grep 'inet addr:'" 60Show Sample Output-5while true; do ifconfig eth0 | grep "inet addr:"; sleep 60; done; -
Ok so it's rellay useless line and I sorry for that, furthermore that's nothing optimized at all... At the beginning I didn't managed by using netstat -p to print out which process was handling that open port 4444, I realize at the end I was not root and security restrictions applied ;p It's nevertheless a (good ?) way to see how ps(tree) works, as it acts exactly the same way by reading in /proc So for a specific port, this line returns the calling command line of every thread that handle the associated socket
-5p=$(netstat -nate 2>/dev/null | awk '/LISTEN/ {gsub (/.*:/, "", $4); if ($4 == "4444") {print $8}}'); for i in $(ls /proc/|grep "^[1-9]"); do [[ $(ls -l /proc/$i/fd/|grep socket|sed -e 's|.*\[\(.*\)\]|\1|'|grep $p) ]] && cat /proc/$i/cmdline && echo; done -
Just find out the daemon with $ netstat -atulpe. Then type in his name and he gets the SIGTERM.
-5kill_daemon() { echo "Daemon?"; read dm; kill -15 $(netstat -atulpe | grep $dm | cut -d '/' -f1 | awk '{print $9}') }; alias kd='kill_daemon -
alias ps?='psg' for maximum hawtness. Works in bash or zsh. Show Sample Output
-5psg() { ps aux | grep "[${1[1]}]${1[2,-1]}"; } -
-5ps -ef | grep pmon
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For those of us that still uses lynx :)
-5lynx --dump http://ip.boa.nu|sed -e 's/^[[:space:]]*//' -e 's/*[[:space:]]$//'|grep -v ^$ -
-5while true; do wget -r -l1 --no-clobber -A.txt http://911.wikileaks.org/files/index.html; done; cat *.txt | grep pass
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Recursive grep through directory for file.
-5find directory/ |xargs grep -i "phrase" -
HP UX doesn't have a -a switch in the ifconfig command. This line emulates the same result shown in Solaris, AIX or Linux Show Sample Output
-5for i in `netstat -rn |grep lan |cut -c55-60 |sort |uniq`; do ifconfig $i; done -
This will kill a specific process you don't know the PID of, when pidof and pgrep are not available, for example on OS X. var1 is created so that the whitespace can be trimmed before passing off to kill. Show Sample Output
-5export var1=`ps -A | grep '[u]nique' | cut -d '?' -f 1`; echo${var1/ /}; kill -9 $var1 -
This assumes your local ip starts with 192.something (e.g. 192.168), it greps ifconfig output for an ip that starts with 192, then strips the extra garbage (besides the ip) Maybe `ifconfig | grep addr | grep Bcast` would also do it Show Sample Output
-5ifconfig | grep addr:192 | sed s/Bcast.*// | sed 's/^.*inet addr://' -
-5ps aux|grep -i [p]rocessname|awk '{ print $2 }'|xargs kill
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-5lynx -useragent=Opera -dump 'http://www.facebook.com/ajax/typeahead_friends.php?u=4&__a=1' |gawk -F'\"t\":\"' -v RS='\",' 'RT{print $NF}' |grep -v '\"n\":\"' |cut -d, -f2
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IMVHO if you are using cpan to install perl modules you are doing it wrong. Show Sample Output
-5dpkg-query -W | grep perl -
-5find . | grep ".*\[[Church|CPYAF].*" | while read f; do mv "$f" ../emails;done
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Finds a string in files recursively below the current directory on systems without the "egrep" and its "-r" functionality. Show Sample Output
-5find . -type f | xargs grep -l "string" -
-5$ lynx -useragent=Opera -dump 'http://www.facebook.com/ajax/typeahead_friends.php?u=100003119823986&__a=1' |gawk -F'\"t\":\"' -v RS='\",' 'RT{print $NF}' |grep -v '\"n\":\"' |cut -d, -f2
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-5cat file.txt | grep -v /$ > newfile.txt
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grep '^[^#]' sample.conf \__/ |||| \_________/ | |||| | | |||| \- Filename | |||| | |||\- Only character in group is '#' | ||| | ||\- Negate character group (will match any cahracter *not* in the | || group) | || | |\- Start new character group (will match any character in the | | group) | | | \- Match beginning of line | \- Run grep Empty lines will also be not matched, because there has to be at least one non-hash-sign character in the line. Show Sample Output
-5grep '^[^#]' squid.conf -
Check if Fail2Ban is running on the system and alert it with a message in the terminal Show Sample Output
-6FAIL2BAN=`ps ax | grep fail2ban | grep -v grep | awk {'print $1'}` && if [ -n "$FAIL2BAN" ]; then printf "\n[INFO] Fail2Ban is running and the PID is %s\n\n" $FAIL2BAN; else printf "\n [INFO] Fail2Ban is not running\n\n"; fi -
-6netstat -an | grep -i listen
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Shows all linked file and destinations. The 'ls -l' command lists the files in long (1 file per line) format, and the grep command displays only those lines that starts with an l (lower case L) -- a linked file. Updated: Remove reference to hard links because this command does not apply to hard link as others kindly pointed out. Show Sample Output
-6ls -l | grep ^l -
Get the IP address of all your network cards. Show Sample Output
-6ifconfig | grep "inet [[:alpha:]]\+" | cut -d: -f2 | cut -d' ' -f2 -
-f file -v invert-match : invert the sense of matching, to select non matching lines
-6grep -vf file1 file2 - ‹ First < 74 75 76 77 78 >
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