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

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
Sample Output
none

-4
By: esaenz
2012-02-21 23:27:47

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  • search_criteria = what do you want to kill pid = pid of you dont kill


    -6
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  • This command kills all processes with 'SomeCommand' in the process name. There are other more elegant ways to extract the process names from ps but they are hard to remember and not portable across platforms. Use this command with caution as you could accidentally kill other matching processes! xargs is particularly handy in this case because it makes it easy to feed the process IDs to kill and it also ensures that you don't try to feed too many PIDs to kill at once and overflow the command-line buffer. Note that if you are attempting to kill many thousands of runaway processes at once you should use 'kill -9'. Otherwise the system will try to bring each process into memory before killing it and you could run out of memory. Typically when you want to kill many processes at once it is because you are already in a low memory situation so if you don't 'kill -9' you will make things worse


    -7
    ps axww | grep SomeCommand | awk '{ print $1 }' | xargs kill
    philiph · 2009-02-28 17:48:51 5
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    for i in $(pgrep -v -u root);do kill -9 $i;done
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  • pgrep, pkill - look up or signal processes based on name and other attributes


    4
    pkill -9 search_criteria
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  • This prints out a list of all zombie processes PIDs so you can do things like kill the zombies Show Sample Output


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    ps axo pid=,stat= | awk '$2~/^Z/ { print $1 }'
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  • You cannot kill zombies, as they are already dead. But if you have too many zombies then kill parent process or restart service. You can kill zombie process using PID obtained from the above command. For example kill zombie proces having PID 4104: # kill -9 4104 Please note that kill -9 does not guarantee to kill a zombie process.


    -1
    kill -HUP `ps -A -ostat,ppid,pid,cmd | grep -e '^[Zz]' | awk '{print $2}'`
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What Others Think

Or simply, 'pkill -9 httpd'. Calling the variable PID is misleading, since it's the process name, not the process ID.
Fudo · 325 weeks and 6 days ago
TRUE. Though I also use that snippets to search for process names, hence the variable.
esaenz · 325 weeks and 5 days ago
pkill is good. Another alternative approach using kill is: kill -9 $(ps -ef | grep [h]ttpd | awk '{print $2}')
peterRepeater · 325 weeks and 2 days ago

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