You can easily install bash on your BSD. But I get your point about writing POSIX compatible code. I'll declare a bash dependency in the shebang if I've only t

You can easily install bash on your BSD. But I get your point about writing POSIX compatible code. I'll declare a bash dependency in the shebang if I've only tested the script on bash. Requiring bash is better than having the script fail on some non-POSIX thing that I wasn't aware of. Linux distributions are getting a lot better in this department these days though, with dash being the default Debian/Ubuntu shell.