[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
bin/56491: /bin/sh hash command "hash foobar" says foobar not found, and exit(1)
>Synopsis: /bin/sh hash command "hash foobar" says foobar not found, and exit(1)
>Arrival-Date: Tue Nov 09 15:20:01 +0000 2021
>Originator: Robert Elz
>Release: NetBSD 9.99.88
System: NetBSD jinx.noi.kre.to 9.99.88 NetBSD 9.99.88 (1.1-20210916) #60: Thu Sep 16 23:18:32 UTC 2021 root%agate.noi.kre.to@localhost:/usr/obj/HEAD/kernels/amd64/JINX amd64
The hash builtin utiliity in /bin/sh when run naming a utility
to be added to the hash table, and the utility is not found,
writes an error message to stderr indicating that the utility
was not found, but goes on to exit(0).
POSIX (for most standard utilities, including this one) specifies that
when stderr is used, the utility must not exit(0) (sometimes more
specific exit status conditions, but never 0 in that case.
It isn't clear (yet) whether the correct fix is to exit(1) when
a utility was not found, or to suppress the error message.
All ksh variants simply ignore "not found" - no error message,
and the exit status is 0. All other (known and relevant) shells
(bash dash, freebsd, yash, zsh, bosh) write an error message,
and eventually exit(1).
Assuming there is o foobar command in any directory in PATH
TBD (either way is a trivial change).
Main Index |
Thread Index |