On Sun, Oct 31, 2021 at 03:33:07PM +0300, Oğuz wrote: > On Sun, Oct 31, 2021 at 2:15 PM Mike Jonkmans <bash...@jonkmans.nl> wrote: > > PATH=/dev/null > > command -p hostname > > hostname # executes /bin/hostname via the hash table > > > > I agree with OP that the behaviour is a bug, or at least unwanted behaviour. > > I'd say it's a feature, and a good one too. Not having to prefix each > invocation of a utility with `command -p ' is a convenience if there's > a lot of them.
It might indeed be convenient. Using the hash as alias for commands, that are not in your PATH, seems risky though. > > I could not find this in POSIX nor in the bash manual, but it seems true: > > Assignment to PATH clears the hash table. > > (Even when the value stays the same). > > It's in XCU 2.9.1.4: Oops, missed that. Thanks. It is indeed there, under 1.e.i in https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_01_01 -- Regards, Mike Jonkmans
