IntelliJ IDEA template for Bash scripts. Notice all "$variable" strings must be escaped to "\$variable" to avoid IDEA new file prompt/placeholders.

bash-template-for-idea.sh

#!/bin/bash

set -e

# Defaults.
opt_ex_a_no_arg=0
opt_ex_b_with_arg="default"

usage()
{
cat <<EOF
OVERVIEW
	TODO

USAGE
	$0 [ -a ] [ -b string ] [ -h ]

OPTIONS
	-a Pass to turn on "a" option.

	-b Pass, followed by argument, to override default "b" option (default: \$opt_ex_b_with_arg).

	-h : Help (show this usage information).

EXAMPLES
	# No options:
	$0

	# Both options:
	$0 -a -b \$opt_ex_b_with_arg
EOF
}

while getopts ":hab:" opt; do

	case \$opt in
		a)
			opt_ex_a_no_arg=1
			;;
		b)
			opt_ex_b_with_arg="\$OPTARG"
			;;
		h)
			usage; echo
			exit 0
			;;
		:)
			echo "Option -\$OPTARG requires an argument." >&2; echo
			usage; echo
			exit 1
			;;
		\?)
			echo "Invalid option: -\$OPTARG" >&2; echo
			usage; echo
			exit 1
			;;
	esac

done

if [ \$opt_ex_a_no_arg -eq 1 ]; then
	echo "Option -a was passed, making variable opt_ex_a_no_arg=\$opt_ex_a_no_arg"
else
	echo "Option -a was not passed; variable opt_ex_a_no_arg=\$opt_ex_a_no_arg"
fi

echo "Variable opt_ex_b_with_arg=\$opt_ex_b_with_arg"

echo "Done ($0)"
exit 0