Print output from R script in Bash

Question

I have a .sh script with calls internally a R script.

This R Script use some directories that I print in my program.

My problem is that the output I am generating in my R script is used after its execution another time in the .sh script.

Example:

Calls join_files.sh, we pass init_month / end_month
Using this init and end month the R script joins all files between those months
I want to get that directories that are being used by my R script, I print them in the R Script and using 'cat' command in R I can get them, but all extra information is being printed.

Is there a way to print directly in the shell using R script?

Possible duplicate of [How do you print to stderr in R?](https://stackoverflow.com/questions/1109017/how-do-you-print-to-stderr-in-r) — divibisan, Mar 04 '19 at 17:59

score 2 · Accepted Answer · answered Mar 04 '19 at 16:34

2

You can suppressMessages that you dont want and only print the needed info. Example:

$ cat sample.sh
output=`Rscript sample.R`
echo $output

$ cat sample.R
suppressMessages(library(tidyverse))
i=100
print(i)

$ sh sample.sh
1 100

answered Mar 04 '19 at 16:34

Sonny

1 Answers1