#!/bin/bash

dict(){
echo $username
}

usage() {
echo "-f                        buat nampilin"
echo "-u username               inisialisasi username"
echo "-h                        showing help"
}
   
if [ $# == 0 ]; then
echo "use -h to show usage"
fi
     
while getopts "fu:h" opt; do
        case $opt in
                f) dict ;;
                u) username="$OPTARG" ;;
                h) usage ;;
                \?) echo "Invalid option: -$OPTARG" >&2
                    exit 1
                    ;;
                :) echo "Option -$OPTARG requires an argument." >&2
                   exit 1
                   ;;
        esac
done