File Change Monitoring Tool
===========================
                    Kohsuke Kawaguchi (kk@kohsuke.org)

This little tool takes a list of files (including wildcards)
as the command line arguments, and waits for one of them
to be modified.

If one of them is changed, the program exits with the error
code that indicates which file it was. For example, if you
invoke

   WaitForChange Makefile src\*.cpp

and you modify src\a.cpp, then the exit code will be 2,
because it was the 2nd argument.

The program also exits if the ENTER key is pressed. In this
case the exit code is 0.


This tool is useful to automatically run a certain task whenever
you save some files from an editor. For example, running htmllint/
browser every time you save an HTML file, or running XSLT
automatically while you are editing a stylesheet.

For example, as the following batch file:
	@echo off
	:start
	WaitForChange index.html
	htmllint index.html
	goto start

Or from cygwin:
	$ while true; do WaitForChange index.html; htmllint index.html; done