Creates a folder named `CRAN` in the same folder as this script and mirrors/syncs master CRAN repository to the `CRAN` folder.

cransync.sh

#!/bin/bash

## **Description:** Creates a folder named `CRAN` in the same folder
## as this script and mirrors/syncs master CRAN repository to the
## `CRAN` folder.

# Get the script path:
SCRIPTPATH=$( cd $(dirname $0) ; pwd -P )

# Get the mirror path:
MIRRORDIR="/CRAN"
MIRRORPATH=${SCRIPTPATH}${MIRRORDIR}

# Notify:
echo "Using '${MIRRORPATH}' as destination to mirror the CRAN"

# Mirror/Sync:
rsync -rtlzv --delete cran.r-project.org::CRAN "${MIRRORPATH}"