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Bug #1397

open

jobs -l output inconsistency when called from script

Added by Anonymous over 15 years ago. Updated over 2 years ago.

Status:
Feedback
Priority:
Normal
Assignee:
Category:
-
Target version:
Start date:
Due date:
% Done:

90%

Estimated time:

Description

Salute.

The jobs(1) utility gives different output when called from a script and when
from an interactive shell.

[beket@voyager ~] cat testjobs.sh
#!/bin/sh
sleep 30 &
jobs -l
[beket@voyager ~] sh testjobs.sh 
[1] + 10005 Running           
[beket@voyager ~] sleep 30 &
[1] 10006
[beket@voyager ~] jobs -l
[1]+ 10006 Running                 sleep 30 &
[beket@voyager ~] 

It is not clear whether the jobs(1) should work at all inside a script. POSIX
says that since it doesn't fall into the 'special' built-in category a new
environment (subshell?) would be created upon its invocation. Even this is true,
the jobs aren't specific to the shell environment, so they should be visible to
jobs(1). And in any case, the command should either print nothing or print all
the fields.

NetBSD 5.0:

$ sh testjobs.sh 
[1] + 27159 Running           sleep 30

SunOS 5.10:

tuxillo@solaris$ /usr/xpg4/bin/sh testjobs.sh 
[1] + 11754      Running                 <command unknown>

FreeBSD: same as us. (kindly reported by vstemen at #dragonflybsd).

Any thoughts ?

Best regards,
Stathis

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