On Wed, 10 Feb 2016 13:36:07 -0700, Jack J. Woehr wrote:
>Paul Gilmartin wrote:
>> In fact, that's a call back to the shell builtin, which:
>>
>> o May involve extra overhead of fork()/exec().
>/bin/sh in OpenBSD is tightly integrated with OpenBSD. It's ksh, not bash or
>old sh, and it's maintained in the OBSD core.
>
>Probably the most attentive maintenance of ksh left in the world today.
>
Many (all?) Linuxen implement system() not with bash, but with dash, the
Debian Almquist SHell, a streamlined minimalist POSIX (but it lacks command
line editing) shell. The Dash forum recurrently endures posts such as,
"Please, please, can we have just this extra *little* bash feature? It's
so useful!" I generally follow up with:
http://getreal.typepad.com/.a/6a00d8341fd10e53ef01bb0799d044970d-pi
For your amusement:
user@OS/390.25.00: ln -s /bin/umask foobar
user@OS/390.25.00: ./foobar
foobar: FSUM7768 Not a 'Shell Regular Built-in Utility'
-- gil
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