getopts usage sample

sample_getopts.sh

#!/bin/bash 

usage() {
        echo "$(basename $0) [options] args"
}

while getopts 'p:fh' args "$@"
do
        case $args in
                p)
                        PARAM=$OPTARG
                        ;;
                f)
                        FLAG=true
                        ;;
                h|?)
                        usage
                        exit 1
                        ;;
        esac
done
shift $(($OPTIND - 1))
echo "\$PARAM=$PARAM \$FLAG=$FLAG \$*=\"$*\""