Commands using kill sorted by votes

Commands using kill (107)

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find and kill a pid for APP

Probably posted previously, I use this all the time to find and kill a process for "APP". Simply replace "APP" with the name of the process you're looking to kill.
This is sample output - yours may be different.
-2

ps -ef | grep APP | awk '/grep/!{print$2}' | xargs -i kill {}

hooobs · 2009-02-05 16:10:05 24
UNIX one-liner to kill a hanging Firefox process

The description of how the one-liner works is here at my blog: http://jugad2.blogspot.com/2008/09/unix-one-liner-to-kill-hanging-firefox.html Show Sample Output
This is sample output - yours may be different.
```
Imaging a Firefox window disappearing :-)
(It kills the hanging firefox process.)
```
-2

kill -HUP ` ps -aef | grep -i firefox | sort -k 2 -r | sed 1d | awk ' { print $2 } ' `

vasudevram · 2009-02-07 10:10:45 21
Kill the terminal(window/tab) you work in [suicide]

Kill -9 immediately kills the given process number. $$ is the process ID of the process you are in.
This is sample output - yours may be different.
-2

kill -9 $$

chanux · 2009-02-17 15:10:29 7
Kills all processes for a certain program
This is sample output - yours may be different.
-2

kill -9 $(pidof process)

luisuribe · 2009-03-23 17:07:55 8
Killing multiplpe process for one program like apache, wget, postfix etc.
This is sample output - yours may be different.
-2

ps aux| grep -v grep| grep httpd| awk {'print $2'}| xargs kill -9

r00t4u · 2009-12-06 05:39:50 7
Killing multiplpe process for one program like apache, wget, postfix etc.
This is sample output - yours may be different.
-2

ps ax| awk '/[h]ttpd/{print $1}'| xargs kill -9

r00t4u · 2009-12-07 09:53:18 4
kill all instances of an annoying or endless, thread-spawning process
This is sample output - yours may be different.
-2

ps auxwww | grep outofcontrolprocess | awk '{print $2}' | xargs kill -9

unixmonkey8311 · 2010-06-30 15:52:52 6
Kill XMMS for a cron job

I use this command, within a cron job, to kill XMMS after a certain amount of time. This command returns the PID used by XMMS, and gets passed to the kill command. Another alternative would be ps aux | grep xmms | grep -v grep | awk '{ print $2 }' | xargs kill
This is sample output - yours may be different.
-2

kill `ps aux | grep xmms | grep -v grep | awk '{ print $2 }'`

corp769 · 2010-11-11 17:26:26 5
alias ps | grep

This is an attempt to get a command which I can alias. It's ugly but it works. I'm hoping someone can suggest a cleaner version. I have tried.... # alias kfire="for i in $( ps aux | grep [F]irefox | awk \'{print $2}\' ); do kill $; done" # alias kfire=`kill $(ps aux | grep [F]irefox | awk '{print $2}' | tr '\n' ' ')` # alias kfire='ps au | grep -i [F]irefox | awk \'{ print $2 \'} ' and they all fail in a .bashrc I've tried escaping the quotes and can't find a way to make the single quotes ' that awk wants work. Maybe I'm just stubborn but I don't want to put in a little #!/bin/bash file just so I can kill a firefox process all in one stroke. This script works (it kills the process before it errors out)... it's just ugly and there may be a pretty way to do this. Show Sample Output
This is sample output - yours may be different.
```
$ kfire
swerve
17165
1.6
-bash: 1.6: syntax error: invalid arithmetic operator (error token is ".6")
```
-2

alias kfire='for i in `ps aux | grep [F]irefox `; do echo $i; kill $(($i)); done; '

swerve · 2010-12-27 01:47:58 15
Reload gnome-panel

I have some problems with gnome panel which does not load completely leaving me without the actual GUI. This commands helps to kill the gnome-panel process then it should be relaunch automatically.
This is sample output - yours may be different.
-2

pgrep -lf gnome-panel | awk '{if ($2=="gnome-panel") print $1}' | xargs kill -9

UnixNeko · 2011-06-12 12:23:27 13
Removing Backgroud Process
This is sample output - yours may be different.
-2

kill -9 `ps -u user -o "pid="`

unixmonkey24730 · 2011-08-20 00:03:37 6
kill defunct processes by killing their parents

defunct processes (zombies) usually have to be killed by killing their parent processes. this command retrieves such zombies and their immediate parents and kills all of the matching processes.
This is sample output - yours may be different.
-2

ps afx | grep defunct -B 1 | grep -Eo "[0-9]{3,}" | xargs kill -9

pholz · 2012-04-27 16:16:34 3
Kill multiple instances of a running process

Find and kill multiple instances of a process with one simple command.
This is sample output - yours may be different.
-3

pgrep rouge-process | xargs sudo kill -9

mheadd · 2010-05-09 22:30:05 6
kills all php5-fcgi processes for user per name
This is sample output - yours may be different.
-3

pgrep -u username php5-fcgi | xargs kill -9

drucko · 2011-08-09 15:32:14 2
kill some process (same as others) but parsing to a variable
This is sample output - yours may be different.
-4

tokill=`ps -fea|grep process|awk '{ printf $2" "}'`; kill -9 $tokill;

jhansen · 2009-07-11 01:40:29 7
kill all running instances of wine and programs runned by it (exe)

This command kills all wine instances and each EXE application working on a PC. Here is command info: 1) ps ax > processes = save process list to file named "processes" (we save it because we don't wont egrep to be found in the future) 2) cat processes | egrep "*.exe |*exe]" = shows the file "processes" and after greps for each *.exe and *exe] in it 3) | awk '{ print $1 }' > pstokill = saves processes PID's to file "pstokill" using awk filter 4) kill $(cat pstokill) = kills each PID in file pstokill, which is shown by cat program 5) rm processes && rm pstokill = removes temporary files Show Sample Output
This is sample output - yours may be different.
```
(silence if ok; kill usage if there are no EXE/wine programs running)
```
-4

ps ax > processes && cat processes | egrep "*.exe |*exe]" | awk '{ print $1 }' > pstokill && kill $(cat pstokill) && rm processes && rm pstokill

sxiii · 2011-02-26 16:13:58 6
kill all pids from $PID

# define user pid to kill PID=httpd ; # kill all pids ps aux | grep $PID | grep -v grep | awk '{print $2}' | xargs kill -9 Show Sample Output
This is sample output - yours may be different.
```
none
```
-4

PID=httpd ; ps aux | grep $PID | grep -v grep | awk '{print $2}' | xargs kill -9

esaenz · 2012-02-21 23:27:47 6
Kill all Zombie processes one-liner

Did some research and found the previous command wrong, we don't kill a zombie but its parent. Just made some modifcation to khashmeshab's command.
This is sample output - yours may be different.
-4

ps -xaw -o state,ppid | grep Z | grep -v PID | awk '{ print $2 }' | xargs kill -9

terrywang · 2013-01-09 04:21:54 5
kills all processes for a certain program e.g. httpd
This is sample output - yours may be different.
-5

ps aux | grep 'httpd ' | awk {'print $2'} | xargs kill -9

thisduck · 2009-03-23 16:15:06 17
Kill a bunch of processes with the same name
This is sample output - yours may be different.
-5

ps ax | grep <processname> | grep -v grep | awk '{print $1}' | sudo xargs kill -9

copyhacker · 2009-03-24 19:52:47 11
Kill a background job

Show Sample Output
This is sample output - yours may be different.
```
$ ping www.google.com &
$ jobs
[1]+  Running                 ping www.google.com &
$ kill %1
[1]+  Terminated              ping www.google.com &
$
```
-5

kill %1

prayer · 2009-04-09 11:54:13 4
Kill a daemon by name, not by PID

Just find out the daemon with $ netstat -atulpe. Then type in his name and he gets the SIGTERM.
This is sample output - yours may be different.
-5

kill_daemon() { echo "Daemon?"; read dm; kill -15 $(netstat -atulpe | grep $dm | cut -d '/' -f1 | awk '{print $9}') }; alias kd='kill_daemon

P17 · 2009-05-26 20:39:56 7
Sneaky logout

Best way I know to get rid of .bash_history and don't allow bash to save the current one on exit Edit: added ~/ before .bash_history, just in case... ;)
This is sample output - yours may be different.
-5

rm ~/.bash_history && kill -9 $$

Velenux · 2009-10-08 12:25:47 9
Kill process you don't know the PID of, when pidof and pgrep are not available.

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
This is sample output - yours may be different.
```
n/a
```
-5

export var1=`ps -A | grep '[u]nique' | cut -d '?' -f 1`; echo${var1/ /}; kill -9 $var1

headyadmin · 2010-03-22 21:06:58 5
Kill a process by application

The pgrep retrieves the PID, then the KILL receive it, and kill it... It works also if the application has more than one instance.... Show Sample Output
This is sample output - yours may be different.
```
kill -9 `pgrep firefox`

kill -9 `pgrep gedit`
```
-5

kill -9 `pgrep $PROCESS_NAME`

juanse006 · 2010-06-18 20:43:24 9
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New command with the last argument of the previous command.

Multi-thread any command

For instance: $ find . -type f -name '*.wav' -print0 |xargs -0 -P 3 -n 1 flac -V8 will encode all .wav files into FLAC in parallel. Explanation of xargs flags: -P [max-procs]: Max number of invocations to run at once. Set to 0 to run all at once [potentially dangerous re: excessive RAM usage]. -n [max-args]: Max number of arguments from the list to send to each invocation. -0: Stdin is a null-terminated list. I use xargs to build parallel-processing frameworks into my scripts like the one here: http://pastebin.com/1GvcifYa

count the number of specific characters in a file or text stream

In this example, the command will recursively find files (-type f) under /some/path, where the path ends in .mp3, case insensitive (-iregex). It will then output a single line of output (-print0), with results terminated by a the null character (octal 000). Suitable for piping to xargs -0. This type of output avoids issues with garbage in paths, like unclosed quotes. The tr command then strips away everything but the null chars, finally piping to wc -c, to get a character count. I have found this very useful, to verify one is getting the right number of before you actually process the results through xargs or similar. Yes, one can issue the find without the -print0 and use wc -l, however if you want to be 1000% sure your find command is giving you the expected number of results, this is a simple way to check. The approach can be made in to a function and then included in .bashrc or similar. e.g. $ count_chars() { tr -d -c "$1" | wc -c; } In this form it provides a versatile character counter of text streams :)

Write comments to your history.

A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Fix "broken" ID3 tags in the current directory and subdirectories

Some MP3s come with tags that don't work with all players. Also, some good tag editors like, EasyTAG output tags that don't work with all players. For example, EasyTAG saves the genre as a numeric field, which is not used correctly in Sansa MP3 players. This command corrects the ID3 tags in MP3 files using mid3iconv, which comes with mutagen. To install Mutagen on Fedora use "yum install python-mutagen"

Factory reset your harddrive. (BE CAREFUL!)

add a backup (or any other) suffix to a file

Very helpful when you've got complex filenames and needs to change just some small parts of it. Renaming a file called "i-made-a-small-typo-right-here" to "i-made-a-big-typo-right-here": $ mv -vi i-made-a-{small,big}-typo-right-here You could also copy multiple files, edit, remove, process, etc.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Go to parent directory of filename edited in last command

Convert JSON to YAML (unicode safe)

If you tried the other Python version of Convert JSON to YAML and you end up with lines that has "!!python/unicode", this version of the command is for you.

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Commands using kill (107)

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