https://github.com/youribonnaffe/jsr223-nativeshell https://github.com/thevpc/jshell
https://stackoverflow.com/questions/8140458/bash-script-interpreter-that-runs-in-jvm-jbash https://code.google.com/archive/p/jbash/ https://www.reddit.com/r/java/comments/5ked6p/looking_for_a_java_based_command_line_interpreter/ https://github.com/crashub/bash
https://www.baeldung.com/linux/debug-bash-script https://www.cyberciti.biz/tips/debugging-shell-script.html