[R] R command execution from shell

[Sebastien Bihorel]

Thank you

That is exactly what I was looking for.

Sebastien

Duncan Murdoch wrote:
> On 04/01/2011 3:21 PM, Sebastien Bihorel wrote:
>> Dear R-users,
>>
>> Is there a way I can ask R to execute the "write("hello
>> world",file="hello.txt")" command directly from the UNIX shell, instead
>> of having to save this command to a .R file and execute this file with R
>> CMD BATCH?
>
> Yes.  Some versions of R support the -e option on the command line to 
> execute a particular command.  It's not always easy to work out the 
> escapes so your shell passes all the quotes through...  An alternative 
> is to echo the command into the shell, e.g.
>
> echo 'cat("hello")' | R --slave
>
> (where the outer ' ' are just for bash).
>
> Duncan Murdoch