Matthew Seaman <m.sea...@infracaninophile.co.uk> wrote: > > It would do no good for the kernel to hand the interpreter an > > open descriptor if the interpreter did not somehow know to read > > the script from that open descriptor instead of opening the > > script file by name. > > Errr -- no. That's what fdescfs(5) is for. When the kernel > execs the interpreter, it tells the script to open /dev/fd/5 (for > example) and doing that just connects the script to the open file > descriptor the kernel used previously to taste the magic number > and the #! line of the script.
which -- again absent some special arrangement in the interpreter -- would cause the script to receive $0 as "/dev/fd/5" instead of the actual name of the script, no? I'd expect this to at least break any messages that the script might try to produce via constructs like echo "$0: whatever" _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
