Bash – Why kill makes a bash script exit

bashkill

after the kill statement the script prints "Terminated" and the following lines never get executed:

#!/bin/bash

kill -9 `ps -ef | grep MailSender | grep -v grep | awk '{print $2}'`
echo starting
./MailSender

I have even tried to add set +e at the beginning but it still exits after kill.

Best Answer

Does the name of your script include MailSender? Try changing it, if so. Also, use pkill -9, it'll be cleaner:

#!/bin/bash

pkill -9 MailSender
echo starting
./MailSender

Related Solutions

Bash Scripting – How to Determine if a Bash Variable is Empty

This will return true if a variable is unset or set to the empty string ("").

if [ -z "${VAR}" ];

Bash – using awk in a bash script with if

Awk is the wrong solution here. How about:

if [[ "$task" =~ ^Clean ]]; then
  echo hello
fi

There's also a sneaky substitution method:

if [ "${task/#Clean/}" != "$task" ]; then
  echo hello
fi

But I find that to be far less readable.

Chris reckons case is tidier... let's try that out:

case $task in
  Clean*)
    echo hello
    ;;
esac

My aesthetic sense says "hell no with bells on", and fiddling with the formatting (Clean*) echo hello;; or similar) won't help much, IMAO. If you want a conditional, use an if, I say.

Best Answer

Related Solutions

Bash Scripting – How to Determine if a Bash Variable is Empty

Bash – using awk in a bash script with if

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