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A scripting and command-line front-end for GNU R

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littler: A scripting and command-line front-end for GNU R

Build Status CI License CRAN Dependencies Downloads Last Commit Documentation

So What Is It For?

#!/usr/bin/env r              ## for use in scripts

other input | r ## for use in pipes

r somefile.R ## for running files

r -e 'expr' ## for evaluating expressions

r --help ## to show a quick synopsis


Plenty. See the examples vignette for a full set of introductory examples. Also see the examples/ directory for a full 28 example scripts, as well as maybe the older tests directory both of which are installed with the package.

Some scripts I uses daily or near daily (in alphabetical order):

build.r                                ## builds from the current directory
c4c.r                                  ## submits current directory to winbuilder
compAttr.r                             ## run compileAttributes() for a Rcpp package
dratInstert.r 1.2-3.tar.gz -r /srv     ## inserts package into drat repo
install.r abc def                      ## installs packages abc and def
install.r abc_1.2-3.tar.gz             ## installs given tarball
install2.r -l /tmp/lib abc def         ## installs abc and def into /tmp/lib
rcc.r abc_1.2-3.tar.gz                 ## run's R CMD check via Gabor's rcmdcheck
render.r foo.Rmd                       ## calls rmarkdown::render()
roxy.r                                 ## run roxyenize() for a package (only Rd creation)
update.r                               ## updates any currently installed packages 


Version 0.3.0 or later

The package resides on the CRAN network and can be installed via


Previous Versions up to 0.2.3

In general, simply running the script

will configure and build the executable. Running
make install
(possibly as
sudo make install
) will install the resulting binary.

On Linux systems, ensure you have the

package (or its equivalent on non-Debian/Ubuntu systems). On OS X, you may need to run
install automake autoconf
to get all the tools.

Alternate Naming

On some operating systems such as OS X,

is not different from
. As this risk confusing the main binary
for the R system with our smaller scripting frontend
, we suggest to consider running
which this leads to installation of a binary
instead of

Alternate R Version

As littler uses autoconf its

macro to find
, one can simply adjust the
when calling
(or, rather,
) to have another version of R used. For example, on a server with R-devel in this location, the following builds littler using this R-devel version:
PATH="/usr/local/lib/R-devel/bin/:$PATH" ./bootstrap

More Information

For more information about littler, please see

(but note that the latter now overlaps with the example vignette).


Jeff Horner (2006 to 2008) and Dirk Eddelbuettel (since 2006)


GPL (>= 2)

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