Greetings. Re this:
> Date: Thu, 24 Sep 2009 14:56:26 +0100
> From: "Denis M. Wilson" <
dmw@...>
> To:
bug-gawk@...
> Subject: [GAWK] Exit status, --lint
>
> The exit status of gawk is undocumented, when
> gawk exits other than via an exit statement.
> E.g. when an error occurs using --lint=fatal.
> In that case the exit status is 2 and not
> EXIT_FAILURE (1 under glibc). Example:
>
> #!/bin/sh
> awk --lint=fatal -f - <<'ENDAWK'
> BEGIN {
> print zzz
> }
> ENDAWK
> echo $?
>
> output:
> awk: -:2: fatal: reference to uninitialized variable `zzz'
> 2
>
> I am using Ubuntu 8.4
>
> Denis M. Wilson
Thanks for the note. I fixed this in 3.1.7, which was released not
too long ago. If you look in doc/gawk.texi, you will find:
@node Exit Status
@section @command{gawk}'s Exit Status
@cindex exit status, of @command{gawk}
If the @code{exit} statement is used with a value
(@pxref{Exit Statement}), then @command{gawk} exits with
the numeric value given to it.
Otherwise, if there were no problems during execution,
@command{gawk} exits with the value of the C constant
@code{EXIT_SUCCESS}. This is usually zero.
If an error occurs, @command{gawk} exits with the value of
the C constant @code{EXIT_FAILURE}. This is usually one.
If @command{gawk} exits because of a fatal error, the exit
status is 2. On non-POSIX systems, this value may be mapped
to @code{EXIT_FAILURE}.
I don't currently have this in the man page.
Thanks for the bug report!
Arnold
