Template for bash Script with Arguments inside Flags.

option_inside_long.sh

#!/bin/bash

function first(){
echo "First Function";
}

function second(){
echo "Second Function";
}

function third(){
echo "Third Function";
}

while [ -n "$1" ]; do
  case "$1" in
		first) first;
			OPTIND=2
			while getopts "lo:" opt; do
           		 	case "${opt}" in
					l) echo "Passsed In Option of First FUnction";
					   ;;
					o) echo "$OPTARG"
					   ;;
				esac
	           	done
			break ;;
		second) second;
			OPTIND=2
			while getopts "l" opt; do
           		 	case "${opt}" in
					l) echo "Passsed In Option of second FUnction";
					   ;;
				esac
	           	done
			break ;;
		-help|--help|-h) echo "Usage:  ";
			echo -e " $0 first -l -o Argument_to_Param";
			echo -e " $0 second -l";
			exit 2;;
		*)
                        if [ "$OPTERR" != 1 ] || [ "${optspec:0:1}" = ":" ]; then
                        echo "Non-option argument: '-${OPTARG}'";
                        fi
                        ;; 

	esac
	shift
done