R-bash integration: bash script

getNOAAdata.sh

#!/bin/bash
# Script downloads NOAA station data and saves it to a .csv file
# Usage:  ./bash/getNOAAdata.sh ./bash/getNOAAdata.R 8656483 8665530 

if [ "$#" -lt 2 ]; then
  echo "Usage: $0 R_script NOAA_station1 NOAA_station2 ..." 1>&2
  exit 1
fi

Rscript=$1
time_stamp=$(date +%Y%m%d)
dir_name="./RDATA/NOAAdata/${time_stamp}"

# make a date-stamped parent directory for the station data
if [ ! -d $dir_name ]; then
  mkdir -p $dir_name
  echo $dir_name
fi


# Pull data using the R script
shift 
for i in "$@"; do
  $Rscript $i $dir_name
done