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I have many processes running by name gunicorn

ubuntu   23884  0.0  7.1 190092 71980 ?        S    Sep10   0:01 gunicorn: worker [ll1]
ubuntu   23885  0.0  6.8 187120 69128 ?        S    Sep10   0:01 gunicorn: worker [ll1]
ubuntu   23886  0.0  7.1 189800 71712 ?        S    Sep10   0:01 gunicorn: worker [ll1]

I want to kill all proccess by name gunicorn.Currently i am able to kill only one process by this script at a time.

#!/bin/bash
pid=`ps ax | grep gunicorn | awk '{split($0,a," "); print a[1]}' | head -n 1`
echo $pid
kill $pid
echo "killed gunicorn"
3
pkill -f gunicorn
echo "killed gunicorn"

That will kill any process that has the name gunicorn on the line and print the killed gunicorn message.

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You can use the kill all command and what signal you want to send:

killall -<signal> gunicorn

You can also use -v to output more information of what it is doing:

killall -v -<signal> gunicorn

Or to use a script like you are doing you could do something like this:

#!/bin/bash

for pid in `pidof gunicorn`; do 
    kill -<signal> $pid;
    echo "killed gunicorn [$pid]"; 
done

<signal>:

enter image description here

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  • Related: Why should I not use 'kill -9' / SIGKILL
    – Kusalananda
    Sep 11 '20 at 5:59
  • @Kusalananda, I did say kill all command and what signal you want to send. Or he can leave off the signal and I believe the default is sending a SIGTERM, but I believe when the operating system is closing down I think it sends out SIGTERM and waits and then sends out a SIGKILL. I will modify my answer and replace 9 with <signal>.
    – NiteRain
    Sep 11 '20 at 16:27

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