sleep.js

var args = process.argv.slice(2)

var delay = args[0]

var preamble = '[sleep #' + process.pid + '] '

if (typeof delay === 'undefined')
{
	return console.error(preamble + 'delay (in ms) not specified')
}

if (delay != parseInt(delay))
{
	return console.error(preamble + 'invalid delay: "' + delay + '"')
}

// console.log(preamble + 'sleeping for ' + delay + ' milliseconds')

setTimeout(function()
{
	// console.log(preamble + 'woken up after ' + delay + ' milliseconds')
	process.exit(0)
},
delay)