Robert Elz <k...@munnari.oz.au> wrote:
> When the shell has to exec a utility, if the exec*() it performs fails,
> it has to reflect that status (failure) back to the calling process
> (usually for our purposes, the script).
>
> XCU 2.8.2 includes ... (lines wrapped for e-mail)
>
> 75455 If a command is not found, the exit status shall be 127.
> If the command name is found, but it is
> 75456 not an executable utility, the exit status shall be 126.
> Applications that invoke utilities without
> 75457 using the shell should use these exit status values to report
> similar errors.
To answer your question:
The POSIXified ksh88 returns 127 for ENOENT and 126 in all other cases.
Jörg
--
EMail:jo...@schily.net (home) Jörg Schilling D-13353 Berlin
joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
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