[R] scripts with littler

François Pinard pinard at iro.umontreal.ca
Mon Jan 8 14:29:20 CET 2007

[John Lawrence Aspden]

>I'm trying to write R scripts using littler (under Debian), and was
>originally using the shebang line:

>#!/usr/bin/env r

>However this picks up any .RData file that happens to be lying around, which
>I find a little disturbing, because it means that the script may not behave
>the same way on successive invocations.

>If you drop the /usr/bin/env trick then 

>#!/usr/bin/r --vanilla

>seems to work, but it also prevents the loading of the libraries in my home
>directory, some of which I'd like to use.

>#!/usr/bin/r --no-restore

>doesn't work at all.

>Ideally I'd like #!/usr/bin/env r --no-restore

>Has anyone else been round this loop and can offer advice?

I usually do something like:

R --slave --vanilla <<EOF

   R script goes here...


# vim: ft=r

If you need to search special places for packages, you may tweak 
exported environment variables between the first and second line.

François Pinard   http://pinard.progiciels-bpi.ca

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