Farmsubsidy data (recipient, payment) CSV split script

fs_split.sh

#!/bin/bash
#Usage     : ./split.sh COUNTRY_CODE FILE_TYPE_WITHOUT_ENDING LINES_PER_FILE
#Author    : Holger Drewes
#Last edit : 2014-11-27
echo -e "Script for splitting payment or recipient files into chunks"
echo -e "***********************************************************\n"

#Check for number of arguments
if [ "$#" -ne 3 ]; then
  echo "Usage: $0 COUNTRY_CODE FILE_TYPE_WITHOUT_ENDING LINES_PER_FILE"
  exit 1
fi

country=$1
dir=./${country}/
filetype=$2
filepath=${dir}${filetype}.txt
lines=$3
tmpfile=tmp_file_split.txt

echo "Splitting file $filepath into chunked files with $lines lines..."
tail -n +2 ${filepath} | split -dl ${lines} - ${filetype}_FC --filter='cat > $FILE.txt'
echo "Adding CSV header to files..."
for file in ${filetype}_FC*
do
    head -n 1 $filepath > $tmpfile
    cat $file >> $tmpfile
    mv -f $tmpfile $dir$file
    echo "New file: $dir$file"
    rm $file
done
echo "Processing finished."