R CMD BATCH - output in terminal

Question

Just learning R and I thought it would be great to use it in batch mode in the unix terminal instead of writing in the R terminal.

So I decided to write test.r

    x <- 2
    print(x)

then in terminal I did

    R CMD BATCH test.r

it runs, But outputs a test.r.Rout file. I can get it to output to say a text file by running R CMD BATCH test.r out.txt.

Question is, is it possible to print the output to the terminal?

You really should go back and accept answers to your previous questions. — Matthew Lundberg, Jan 21 '13 at 05:11

score 13 · Accepted Answer · answered Jan 21 '13 at 06:36

13

Sebastian-C posted:

    Rscript test.r

This worked in the terminal and produced the desired output

Thanks Sebastian-C

answered Jan 21 '13 at 06:36

Blakedallen

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You can accept your own answer, this signals that the question was answered. – Paul Hiemstra Jan 21 '13 at 07:26
apparently I need to wait 2 days... it says. – Blakedallen Jan 21 '13 at 07:50
Hmm, I seem to remember that this was 2 hours, but maybe this does not hold for self accepting answers. – Paul Hiemstra Jan 21 '13 at 09:18

score 1 · Answer 2 · answered May 31 '15 at 06:21

A somewhat late reaction, but the other day I was looking for the answer to exactly the question Blakedallen posted. Here's my solution:

mkfifo fifo   # create a named pipe
cat fifo &    # show everything to the terminal 
              # (or do 'cat fifo' in another terminal)
R CMD BATCH input # 'input' contains your R commands

Works like a charm :-)

The 'fifo' named pipe can be used again for any future R CMD BATCH commands you may want to execute. After the 'R CMD BATCH' command the 'cat' command also ends.

R CMD BATCH - output in terminal

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