[BioC] system() command in R

[Vincent Carey]

This question has nothing to do with Bioconductor and should be taken to R-help.

If you read the source to system() you will see that wait=FALSE has
the effect of appending ampersand to given cmd.

On Mon, Apr 4, 2011 at 6:49 AM, Markus Boenn
<boenn at informatik.uni-halle.de> wrote:
> Hello,
>
> did you also try
>
> cmd<-"sh start-server.sh &"    #<<<------
> system(cmd, wait=FALSE)
>
>
> ??
>
> Maybe this works. The "&" tells the process to run in the background.
>
> Markus
>
> rasanpreet kaur suri wrote:
>>
>> Hi all,
>> I have a local server insalled on my system and have to start that from
>> within my R function.
>>
>> here is how I start it:
>>
>> cmd<-"sh start-server.sh"
>> system(cmd, wait=FALSE)
>>
>> My function has to start the server and proceed with further steps. The
>> server starts but the further steps of the program are not executed.The
>> cursor keeps waiting after the server is started.
>>
>> i tried removing the wait=FALSE, but it still keeps waiting.
>>
>> I also tried putting the start-server in a separate function and my
>> further
>> script in a separate function and then run them together, but it still
>> waits. The transition from the start of server to next step is not
>> happening.
>>
>> Please help. I have been stuck on this for quite some time now.
>>
>>        [[alternative HTML version deleted]]
>>
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>
>
> --
> Markus Bönn
> Martin-Luther-Universität Halle-Wittenberg
> Naturwissenschaftliche Fakultät III
> Institut für Informatik
> von-Seckendorff-Platz 1
> 06120 Halle (Saale)
>
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