Shell Programming and Scripting

Hi there,

I'd like to run a R Script within a Bash Script, which is not a problem to me:

Example:

#!/bin/bash
echo Test
R --no-save < test.r

My Problem is, that I'd like to define a variable within my Bash Script to assign to my R Script:

Example:

#!/bin/bash
echo Test
year=2010
R --no-save < test.r

So Id like the variable "year" and its value to be able to be read in my R-Script?

Maybe thats more of an R question, but Id appreciate any help.
Many thanks in advance.

First,

Please use CODE tags.
No cyber style typing. Please expand it fully.

And now to the question:
Are you looking for a way to execute a script within another script and assign the output or status of the script to a variable or something of that sort?

Hi,

thanks for your response.

I want to write a bash script, where lots of R scripts are invoked.

Before I invoke these R scripts though within my bash script, I want to declare a "numeric value" manually in that bash script, which then should be used in my R scripts.

Im aware that I have to adjust my code in my R scripts as well, but how do i declare such a "numeric value", so that a R script (which should be run in the same bash script later on) is able to read that value directly?

I hope, I made my problem more obvious.

Best regards.

within your main script call the R script like so..

Code:

./R.sh $value

Which will parse whatever you have set $value as into R.sh.

Then in R.sh $1 will be whatever that first parameter is.