bash_script_with_try_catch.sh

bash_script_with_try_catch.sh

#!/bin/bash
# see https://stackoverflow.com/a/46597567/1640414

echo "started"

function a() {
  # do some stuff here
  echo "a()"
  ls *.sh
}
function b() {
  # do more stuff here
  echo "b()"
  python --version &
  PID=$!
}

# try
(
  # this flag will make to exit from current subshell on any error
  # inside it (all functions run inside will also break on any error)
  # the `-x` just writes each command before running it (useful for logs|remove in prod env)
  set -ex
  a
  b; echo "PID after b() is $PID"
  echo 'r'
  # do more stuff here
)
# catch
errorCode=$?
if [ $errorCode -ne 0 ]; then
  echo "failed :("
  # We exit the all script with the same error, if you don't want to
  # exit it and continue, just delete this line.
  exit $errorCode
fi

echo "completed :)"