Re: [Fab-user] run commands in sub-shell?

[Mohamed Lrhazi]

Excellent. Thanks a lot. not sure what I thought I saw that made me
think it did not behave that way.

Mohamed.

On Sun, Apr 10, 2011 at 11:17 PM, Jeff Forcier <address@hidden> wrote:
> Fabric runs every command within a subshell by default, as documented
> in the API docs for run and sudo:
>
>    
> http://docs.fabfile.org/en/1.0.1/api/core/operations.html#fabric.operations.run
>
> You can verify whether this is lining up with what you need/want by
> turning on debug output:
>
>    http://docs.fabfile.org/en/1.0.1/usage/output_controls.html#debug-output
>
>
>
> On Sun, Apr 10, 2011 at 4:29 PM, Mohamed Lrhazi <address@hidden> wrote:
>> From looking at the code, in operations.py,it does not seem to be
>> passing the command to a shell with -c argument, like in the example I
>> gave from sudo man page.
>>
>> So the command would run as:
>>
>> sudo command
>>
>> and not
>>
>> sudo sh -c command
>>
>> so if my command has shell redirection or pipes, those would not apply
>> to my command, but to the bash used to run sudo.. am I right?
>>
>>
>>
>> On Sun, Apr 10, 2011 at 6:14 PM, Christian Vest Hansen
>> <address@hidden> wrote:
>>> It already does this. With sudo(), the env.sudo_prefix is put in front
>>> of the command constructed with env.shell (bash by default) and your
>>> command line.
>>>
>>> On Sun, Apr 10, 2011 at 21:44, Mohamed Lrhazi <address@hidden> wrote:
>>>> wouldn't it be better if run() and sudo() run commands in a subshell?
>>>> as sudo man page says:
>>>>
>>>>
>>>>  To make a usage listing of the directories in the /home partition.
>>>> Note that this runs the commands in a sub-shell to make the cd and
>>>> file redirection work.
>>>>
>>>>        $ sudo sh -c "cd /home ; du -s * | sort -rn > USAGE"
>>>>
>>>>
>>>> Or this possible by setting some env variables?
>>>>
>>>>
>>>> Thanks,
>>>> Mohamed.
>>>>
>>>> _______________________________________________
>>>> Fab-user mailing list
>>>> address@hidden
>>>> http://lists.nongnu.org/mailman/listinfo/fab-user
>>>>
>>>
>>>
>>>
>>> --
>>> Venlig hilsen / Kind regards,
>>> Christian Vest Hansen.
>>>
>>
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>>
>
>
>
> --
> Jeff Forcier
> Unix sysadmin; Python/Ruby engineer
> http://bitprophet.org
>