Shell scripting can be tricky because there's bash and then there's sh and then again there's ksh. Lots of people think they are writing sh scripts and even put #/bin/sh on the tops of their files, ...

Linux Journal, representing 25+ years of publication, is the original magazine of the global Open Source community.

Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every shell ...