Kill all Zombie processes one-liner

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

By: terrywang
2013-01-09 04:21:54

4 Alternatives + Submit Alt

What Others Think

This is wrong on several levels: First off, you don't kill a zombie. It's parent has to wait() on it. Zombie process (in case you didn't know this) is simply an entry in the process table of an exited process that was not wait()-ed on, yet. The sole purpose of zombie process is to carry the exit status to it's parent. Second, using grep like that would kill any innocent bystanders that happen to have "Z" as an argv (not to mention any programs named "Z"). And while khashmeshab's alternative certainly works, I wouldn't necessarily recommend running around like dragon with a hemorrhoid killing everything in sight. Better to investigate why their parent fails to pickup on their termination before bringing in "kill -9".
wejn · 487 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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