I have over the years developed a similar template. It’s got usage, arg parsing, etc. One thing I find incredibly useful, which doesn’t appear in the minimal t

I have over the years developed a similar template. It’s got usage, arg parsing, etc. One thing I find incredibly useful, which doesn’t appear in the minimal template presented here (unless I’ve missed it), is the ability to run the program in a mode where it prints out debug info like variables getting set, function names and line numbers. I add this to the start of every bash script: if [ -n "$DEBUG" ]; then echo "$0: Setting bash option -x for debug" PS4='+($(basename ${BASH_SOURCE}):${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }' set -x fi Then to run with debug info printed just set DEBUG=1 Ideally there would be a debugger where you could step through code, but this is the closest I’ve found to that.