InteractiveHelp

This page was last updated on April 4, 2012.

This script offers two different ways of getting help at the press of a key. Each time you are offered a choice and the script will not move from that offer until one of the suggested keys is pressed:

#!/bin/bash

HELP1 () {
	echo;
	echo "This is help1.";
	echo;
	read -s -n1 -p "Press x to exit help or press 2 for help2. (x/2)" keypress;
		if [ "$keypress" = "x" ]; then
			DONOTHING;
		elif [ "$keypress" = "2" ]; then
			echo;
			HELP2;
		else
			HELP1;
		fi;
	};

HELP2 () {
	echo;
	echo "This is help2.";
	echo;
	read -s -n1 -p "Press x to exit help or press 1 for help1. (x/1)" keypress;
		if [ "$keypress" = "x" ]; then
			DONOTHING;
		elif [ "$keypress" = "1" ]; then
			echo;
			HELP1;
		else
			HELP2;
		fi;
	};

DONOTHING () {
	echo;
	:
	};

HELPINTERFACE () {
	echo;
	read -s -n1 -p "Press 1 for help1 or 2 for help2. (1/2)" keypress;
	echo;
	if [ "$keypress" = "1" ]; then
		HELP1;
	elif [ "$keypress" = "2" ]; then
		HELP2;
	else
		HELPINTERFACE;
	fi;
	};

OFFERTOHELP () {
	echo;
	read -s -n1 -p "Would you like some help? (y/n)" keypress;
	echo;
	if [ "$keypress" = "y" ]; then
		HELPINTERFACE;
	elif [ "$keypress" = "n" ]; then
		DONOTHING;
	else
		OFFERTOHELP;
	fi;
	};

OFFERTOHELP;
echo;
echo "This is the script running after the choices are made.";
echo;

Obligatory Happy Ending

And they all lived happily ever after. The end.