Thanks, I didn't know that, but then I almost never target POSIX. My next complaint would be the use of '[' as a test rather than my preferred '[['. Edit: Afte

Thanks, I didn't know that, but then I almost never target POSIX. My next complaint would be the use of '[' as a test rather than my preferred '[['. Edit: After looking for a problem with POSIX, I found this obscure issue that may well catch out people as under POSIX, IFS is a terminator rather than a separator: https://mywiki.wooledge.org/BashPitfalls#IFS.3D.2C_read_-ra_fields_.3C.3C.3C_.22.24csv_line.22 https://mywiki.wooledge.org/BashPitfalls#IFS.3D.2C_read_-ra_...