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Re: "jobs" builtin: print zero exit status


From: Dmitry Bolshakov
Subject: Re: "jobs" builtin: print zero exit status
Date: Sat, 14 Sep 2013 16:14:23 +0400

"wait" blocks, "jobs" - does not

-- 
with best regards
Dmitry Bolshakov

12.09.2013, 22:34, "Chet Ramey" <address@hidden>:
> On 9/12/13 6:14 AM, Dmitry Bolshakov wrote:
>
>>     Hi!
>>     imho "jobs" should either print zero exit status or it should be
>>     documented that "Done" means zero exit status
>>     $ bash -c 'set -m; perl -e "sleep 1; exit 123"& { sleep 3; jobs -l; }'
>>     [1]+е║ Exit 123е║е║е║е║е║е║е║е║е║е║е║е║е║е║е║ perl -e "sleep 1; exit 123"
>>     ok, I see exit status
>>     but
>>     $ bash -c 'set -m; perl -e "sleep 1; exit 0"& { sleep 3; jobs -l; }'
>>     [1]+е║ Doneе║е║е║е║е║е║е║е║е║е║е║е║е║е║е║е║е║е║е║ perl -e "sleep 1; exit 
>> 0"
>>     imho "Exit 0" would be better for scripting
>
> The format of the text isn't in the man page at all.  Parsing the output
> of jobs is a really terrible way to figure out a job's exit status.  You
> might try using `wait'.
>
> 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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