Rscript {utils}R Documentation

Scripting Front-End for R


This is an alternative front end for use in #! scripts and other scripting applications.


Rscript [options] [-e expression] file [args]


options A list of options beginning with --. These can be any of the options of the standard R front-end, and also those described in the details.
expression a R expression.
file The name of a file containing R commands. - indicates ‘stdin’.
args Arguments to be passed to the script in file.


Rscript --help gives details of usage, and Rscript --version gives the version of Rscript.

Other invocations invoke the R front-end with selected options. This front-end is convenient for writing #! scripts since it is an executable and takes file directly as an argument. Options --slave --no-restore are always supplied: these imply --no-save.

Either one or more -e options or file should be supplied.

Additional options accepted (before file or args) are

gives details of what Rscript is doing. Also passed on to R.
where list is a comma-separated list of package names or NULL. Sets the environment variable R_DEFAULT_PACKAGES which determines the packages loaded on startup. The default for Rscript omits methods as it takes about 60% of the startup time.

Normally the version of R is determined at installation, but this can be overridden by setting the environment variable RHOME.

stdin() refers to the input file, and file("stdin") to the stdin file stream of the process.


Rscript is only supported on systems with the execv system call.


## Not run: 
Rscript -e 'date()' -e 'format(Sys.time(), "

## example #! script

#! /path/to/Rscript --vanilla --default-packages=utils
args <- commandArgs(); args <- args[-(1:match("--args", args)]
res <- try(install.packages(args))
if(inherits(res, "try-error")) q(status=1) else q()

## End(Not run)

[Package utils version 2.5.0 Index]