#!/bin/sh

if [[ -f $1 ]]; then
    echo "File passed."
else
  echo "No file or invalid input."
  exit 1
fi

while getopts ':n:p:m:t:' OPTION; do
  case ${OPTION} in
    n )
      nvalue="$OPTARG"
      echo "${OPTARG} node/s were given."
      ;;
    p )
      pvalue="$OPTARG"
      echo "${OPTARG} core/s per node were given."
      ;;
    m )
      mvalue="$OPTARG"
      echo "${OPTARG} memory was given"
      ;;
    t )
      tvalue="$OPTARG"
      echo "${OPTARG} hour/s were given"
      ;;
    \? )
      echo "Script usage: $(basename $0) [-n] [-p] [-m] [-t]" >&2
      exit 1
      ;;
    esac
done
shift "$(($OPTIND -1))"