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Re: different exit codes in $? and address@hidden


From: Chet Ramey
Subject: Re: different exit codes in $? and address@hidden
Date: Sun, 14 Oct 2012 12:10:15 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:15.0) Gecko/20120907 Thunderbird/15.0.1

On 10/14/12 4:46 AM, Wladimir Sidorenko wrote:
>> What do you think should happen in the following case?
>> ! exit 1 | exit 2 | exit 3
> 
> To my mind the '!' operator should have had a higher precedence during
> parsing command line arguments than the pipe and applied only to the
> command it was immediately preceding.

You're free to feel that way, but existing shells don't implement it like
that, and Posix doesn't agree with you.

Chet


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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