Unable to disown process

Andrew DeFaria Andrew.DeFaria@tellabs.com
Wed Jul 6 21:13:00 GMT 2011


On 7/6/2011 2:01 PM, Andy Koppe wrote:
> On 6 July 2011 21:15, Andrew wrote:
>> On 7/6/2011 12:12 PM, Andy Koppe wrote:
>>> You can use the 'setsid' utility from the util-linux package to invoke
>>> a program in its own session, i.e. without connection to the terminal
>>> it is invoked from. For example:
>>>
>>> setsid ssh -NL 1119:news.mozilla.org:119 \
>>>           -L 2119:news.gmane.org:119 \
>>>           -L 3119:nntp.perl.org:119 \
>>>           andrew@defaria.com
>>>
>>> No need for 'nohup', redirections, backgrounding, or 'disown' with this.
>> Actually I still need backgrounding as without it my ~/bin/tunnel just hangs
>> on the setsid command...
> Hmm, I'm afraid I don't know why that happens when setsid is invoked
> from a script.
>
> This returns immediately:
>
> $ setsid sleep 10
>
> As does this:
>
> $ bash -c 'setsid sleep 10'
>
> But this doesn't:
>
> $ echo 'setsid sleep 10'>  sleep.sh; bash sleep.sh
>
> Andy
The above coincides with my experiments too. Not a big deal as adding a 
"&" to the line in the script works just fine.
-- 
Andrew DeFaria <http://defaria.com>
If croutons are stale bread, why do they come in airtight packages?


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