options-template.sh

#!/bin/bash

if ( ! getopts ":f:m:s:h" opt); then
    echo "Usage: `basename $0` options (-f value) (-m value) (-s value) -h for help";
    exit $E_OPTERROR;
fi

while getopts ":f:m:s:h" opt; do
  case $opt in
    h)
      echo "-h was triggered!" >&2
      ;;
    f)
      echo "-f was triggered, Parameter: $OPTARG" >&2
      AUX=$OPTARG
      ;;
    :)
      echo "Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
    m)
      echo "-m was triggered, Parameter: $OPTARG" >&2
    grep "$OPTARG" $AUX
      ;;
    :)
      echo "Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
    s)
      echo "-s was triggered, Parameter: $OPTARG" >&2

      ;;
    :)
      echo "Option -$OPTARG requires an argument." >&2
      exit 1
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      exit 1
      ;;
  esac
done