plus the delightful mechanism of set -euo pipefail # stop execution if anything fails cleanup () { rm $tmp_file popd # anything

plus the delightful mechanism of set -euo pipefail # stop execution if anything fails cleanup () { rm $tmp_file popd # anything else you want to think of here to get back to the state of the # world before you ran the script } trap cleanup EXIT # no matter how the program exits, run that cleanup function. A really good rundown of the different options for set https://www.howtogeek.com/782514/how-to-use-set-and-pipefail-in-bash-scripts-on-linux/ https://www.howtogeek.com/782514/how-to-use-set-and-pipefail...