[R] How do I modify sytem shell environment from within R?

[Jeff Newmiller]

You don't, at least not for building libraries. Do it at the command line before you invoke the R commands. If you are using Cygwin, then be sure to use the Bash shell export command to set the variables.
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Sent from my phone. Please excuse my brevity.

Michael <comtech.usa at gmail.com> wrote:

>Hi all,
>
>Could you please tell me how do I modify the environment variable (as
>below), from within R session?
>
>LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/mypath
>export LD_LIBRARY_PATH
>
>Thanks a lot!
>
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>
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