Be Bash Awesome... every shell script should have something similar

Bash Usage

pparam=$@;
if [ -z "$pparam" ]; then
        echo "Usage: beAwesome.sh --[prod,stage]"; exit 1;
fi

for opt in $@; do
	case $opt in
		"--prod")
			echo "Production run";
			DATABASE=seriousAwesome;
			#...
			;;
		"--stage") 
			echo "Staging run";
			DATABASE=almostAwesome;
      			#...
			;;
		*)
			echo "Invalid parameter: $opt";
			echo "Usage: beAwesome.sh --[prod,stage] \n\n";
			exit 1;
			;;
	esac
done