[R-SIG-Mac] Executing iOS system code within R

Christofer Bogaso bogaso.christofer at gmail.com
Tue Oct 10 20:21:41 CEST 2017


Hi Elijah, your suggestion is perfect - basically, I need to use ';'
as separator between multiple lines of iOS code. Thanks for this
pointer.

On Tue, Oct 10, 2017 at 11:46 PM, elijah wright <elw at stderr.org> wrote:
> something like:
>
> system("PWD=`pwd`; cd TARGETDIR; ./runme.sh; cd $PWD') will do basically this.
>
> Every time you run the system call it should be spawning a new shell
> with a fresh environment.
>
> --e
>
>
> On Tue, Oct 10, 2017 at 12:58 PM, Christofer Bogaso
> <bogaso.christofer at gmail.com> wrote:
>> Hi again,
>>
>> I need to execute few line of system codes for iOS from R. Basically
>> that execution involves (as an example) :
>>
>> 1. Change the Working directory first
>> 2. Execute some task (e.g.deleting a file)
>> 3. Then go back to original folder/directory
>>
>> I am aware of system() function which can be used here. However it
>> looks that system() function executes iOS code one-by-one i.e. after I
>> execute system('cd .....') for #1 above, that changed directory is not
>> passed for #2 and so on.
>>
>> Is there any way where I can run a chain on iOS code as-a-whole using R.
>>
>> Your help will be highly appreciated.
>>
>> Thanks for your time.
>>
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