To avoid that problem, you'll want to set -o noclobber in scripts or, better, for your login shell, and let it be inherited by subshells, including those that run your shell scripts.

The Test-Path cmdlet can keep you from going bonkers by offering a little bit of script pre-error-handling.

Anyhow, I was writing a script and given that CTP3 now supports the good old try and catch error handling methodology. My error handling logic, of course, was using it.

Check out the Shell Style Guide on GitHub to get started. Also, Apple has a document on shell script security that's also well worth a read. Be careful out there! A little extra time making sure your ...