#!/bin/sh
set -e
# add four files

if [ $# -ne 6 ] ; then
  echo "Error in $0: invalid number of arguments $#"
  exit 1
fi

pfx=$1
inp1=$2
inp2=$3
inp3=$4
inp4=$5
out=$6

access inp1 ${pfx}_${inp1}
access inp2 ${pfx}_${inp2}
access inp3 ${pfx}_${inp3}
access inp4 ${pfx}_${inp4}

add inp1 inp2 inp12
add inp3 inp4 inp34
add inp12 inp34 ${pfx}_${out}

release inp1 inp2 inp3 inp4 inp12 inp34