[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Memory leak in wait
From: |
Chet Ramey |
Subject: |
Re: Memory leak in wait |
Date: |
Thu, 05 Mar 2015 11:11:13 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 2/28/15 5:29 AM, Jean Delvare wrote:
> On Fri, 07 Nov 2014 08:24:07 -0500, Chet Ramey wrote:
>> On 11/7/14, 3:49 AM, Jean Delvare wrote:
>>> 2* If bash remembers the process statuses, how does one access the
>>> information? I couldn't find anything related to that in the manual
>>> page, but it's huge so maybe I missed it.
>>
>> You can use wait with a pid argument, maybe one that you saved earlier
>> in a script or obtained from `ps'.
>
> My question is, what is the point of keeping the information after wait
> has been called for that PID? If this is the only possible use of the
> information, I do not understand why the record is not discarded after
> calling "wait $pid".
Because the shell has always allowed a script to wait for a process
multiple times.
The shell discards all saved statuses when `wait' is called without
arguments.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/