R help - May 2010 - How to execute multiple R scripts sequentially in unix background

Dear list

I need to 1) run several R scripts sequentially due to results waiting
and 2) run them in unix background since my ssh frequently timeout for
some reason.
if paste following codes to unix

R --vanilla script1 &
R --vanilla script2 &
R --vanilla script3 &

will result in simultaneous instead of sequential execution of the
three scripts.

source() might be an alternative, however, I am not clear how to run
it in the background.

Thanks

yong

On 21.05.2010 09:29, Yong Wang wrote:
> Dear list
>
> I need to 1) run several R scripts sequentially due to results waiting
> and 2) run them in unix background since my ssh frequently timeout for
> some reason.
> if paste following codes to unix
>
> R --vanilla script1&
> R --vanilla script2&
> R --vanilla script3&

1. Write a shell script that does the above, or

2. Write an R "script" that contains the lines:

source(script1)
source(script2)
source(script3)

and call it via

R --vanilla script


or or or.....

Uwe Ligges


> will result in simultaneous instead of sequential execution of the
> three scripts.
>
> source() might be an alternative, however, I am not clear how to run
> it in the background.
>
> Thanks
>
> yong
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

On Fri, 21 May 2010 03:29:49 -0400
Yong Wang <wangyong1 at gmail.com> wrote:
> Dear list
> 
> I need to 1) run several R scripts sequentially due to results waiting
> and 2) run them in unix background since my ssh frequently timeout for
> some reason.
If this is the main obstacle you should learn about screen!

http://www.gnu.org/software/screen/

> if paste following codes to unix
> 
> R --vanilla script1 &
> R --vanilla script2 &
> R --vanilla script3 &
> 
> will result in simultaneous instead of sequential execution of the
> three scripts.
> 
> source() might be an alternative, however, I am not clear how to run
> it in the background.
May be a script containing 
source("script1")
source("script2")
source("script3")
does the trick for you?

Have a nice weekend.

detlef

> 
> Thanks
> 
> yong
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.