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Re: external versions of sh built-in utilities
I received an off-list reply about this, with permission to
forward it to the list...
------- Forwarded Message
From: "M. Levinson" <mlevins%users.sourceforge.net@localhost>
Date: Sat, 15 Jul 2017 08:10:44 -0400
To: Robert Elz <kre%munnari.OZ.AU@localhost>
Subject: Re: external versions of sh built-in utilities
For what little it's worth, here's where this silly requirement can be found
(in case you're still looking for it):
However, all of the standard utilities, including the regular built-ins
in the table, but not the special built-ins described in Special
Built-In Utilities, shall be implemented in a manner so that they can
be accessed via the exec family of functions as defined in the System
Interfaces volume of POSIX.1-2008 and can be invoked directly by those
standard utilities that require it (env, find, nice, nohup, time, xargs).
------- End of Forwarded Message
Another off list reply suggested that if this requirement exists (which
now it is obvious it does) then that would be a (another) perfect excuse
to ignore POSIX.
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