David Härdeman <david@hardeman.nu> wrote: >2) "-a" is a bashism so I think we should avoid it even though it > seems to be supported by the initramfs shell No, -a in [ expr -a expr ] is not a bashism, it is defined in POSIX 1003.1 Shell & Utilities, test. Writing it either way will get the job done in this case. Cheers, -- Leonard