Get the exit code of a Python script in a Bash script

Question

I'm new to Bash and want to catch my Python script exit code.

My script.py looks like:

#! /usr/bin/python
def foofoo():
    ret = # Do logic
    if ret != 0:
        print repr(ret) + 'number of errors'
        sys.exit(1)
    else:
        print 'NO ERRORS!!!!'
        sys.exit(0)

def main(argv):
    # Do main stuff
    foofoo()

if __main__ == "__main__":
    main(sys.argv[1:]

My Bash script:

#!/bin/bash
python script.py -a a1  -b a2 -c a3
if [ $?!=0 ];
then
    echo "exit 1"
fi
echo "EXIT 0"

My problem is that I am always getting exit 1 printed in my Bash script. How can I get my Python exit code in my Bash script?

Peter Mortensen · Accepted Answer · 2020-11-29 05:30:54Z

23

The spaces are important because they are the arguments delimiter:

if [ $? != 0 ];
then
    echo "exit 1"
fi
echo "EXIT 0"

Or numeric test -ne. See man [ for [ command or man bash for builtin more details.

# Store in a variable. Otherwise, it will be overwritten after the next command
exit_status=$?
if [ "${exit_status}" -ne 0 ];
then
    echo "exit ${exit_status}"
fi
echo "EXIT 0"

edited Nov 29, 2020 at 5:30

Peter Mortensen

31.4k22 gold badges110 silver badges134 bronze badges

answered Jun 22, 2017 at 8:14

Nahuel Fouilleul

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