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Re: retval of pipelined cmd in bash


Elfyn,

If you looker more closely, you'll see that Sören already knows about the $? variable.

Randall Schulz


At 14:51 2002-12-20, Elfyn McBratney wrote:
Hello Soren,

What you need is the $? variable. The simplest testcase would be this:

>>> rt.c
int
main()
{
return(21);
}
<<<

[root@webdev]:{509}:% gcc rt.c -o rt
[root@webdev]:{510}:% ./rt
[root@webdev]:{511}:% echo $?
21
[root@webdev]:{512}:%

Elfyn
elfyn@exposure.org.uk


--- Soren A <soren_andersen@fastmail.fm> wrote:
>Hallo Cygwains,
>
>...
>----------------------------------8<-----------------------------------
> function powermake
> {
> declare -x LESS='-z-2$ -s~wR'
> declare PAGER='/bin/less'
> declare +x ECODE=
> { make "$@" || ECODE=$? ; } 2>&1 | tee $MAKE_ERR_TO | \
> /cdv/f/scr/colormake.pl | $PAGER -O"${MAKE_ERR_TO}.colorlog"
> if [[ $ECODE ]] # "0" and "1" are both TRUE; "null" is FALSE.
> then $gvimexe --servername 'QUICKFIX' -q "$(cygpath -wla $MAKE_ERR_TO)"
> else echo 'No "make" errors to diagnose: retval was ' '"'$ECODE'".'
> fi
> return $ECODE
> }
>----------------------------------8<-----------------------------------
>
>...
>
> Thanks,
> Soren

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