My bash script won't execute commands after kill command

Question

I am trying to make a bash script that is killing a process and then it's going to do other stuff.

PID=`ps -ef | grep logstash | grep -v "grep" | awk '{print $2}'`
echo $PID
kill -9 $PID
echo "logstash process is stopped"
rm /home/user/test.csv
echo "test.csv is deleted."
rm /home/example.txt
echo "example.txt is deleted."

When I run the script, it kills logstash as exptected but it terminates also my whole script.

I've also tried: kill -9 $(ps aux | grep 'logstash' | awk '{print $2}'). With this command, my script will be terminated as well.

My script is stoplogstash.sh and i am using kill to force stopping the process. — jurh, Nov 27 '18 at 13:50
Give your scrip a name which does not contain "logstash" :-) — Dominique, Nov 27 '18 at 13:51
the name of your script is making grep to return its own PID. Please grep it as '[ ]logstash[ ]' — Matias Barrios, Nov 27 '18 at 13:52

score 1 · Answer 1 · answered Nov 27 '18 at 13:54

1

it looks like your script name includes "logstash".

As a consequence, PID is filled with 2 values, and the kill command kills your script as well.

Rename your script without "logstash" in the name should fix the issue.

answered Nov 27 '18 at 13:54

kalou.net

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score 0 · Accepted Answer · answered Nov 27 '18 at 13:53

This should correct your issue :

PID=$( ps -ef | grep -E '[ ]logstash[ ]' | grep -v "grep" | head -1 | awk '{print $2}')
echo $PID
kill -9 $PID
echo "logstash process is stopped"
rm /home/user/test.csv
echo "test.csv is deleted."
rm /home/example.txt
echo "example.txt is deleted."

Regards!

My bash script won't execute commands after kill command

2 Answers2