Embedded shell scripts typically end up targeting the common denominator of bash/BusyBox/coreutils but the POSIX standards are a pretty good reference too. Peop

Embedded shell scripts typically end up targeting the common denominator of bash/BusyBox/coreutils but the POSIX standards are a pretty good reference too. People often don't realize this, but standards are useful even if they aren't implemented 100% fully and correctly.