Oh happy day! I got an e-mail from a reader with a shell script question that didn't appear to be homework from a programming class or anything to do with hacking passwords. The reader wrote: I am ...

I realize I've been playing a bit fast and loose with my shell scripts over the last few months, because I haven't talked about how to ensure that error conditions ...

ShellCheck is a code verifier that spots bugs, incompatibilities, and other problems in shell scripts. It’s valuable because few similar tools exist, and shell programming can be particularly flaky, ...