Nodejs Watching a file + Spawning new processes to list file information

Hi guys - Trying to get my hands dirty with Node.js and its pretty cool.

Its so easy to do stuff. Here is a small code snippet which demonstrate watching a file and spawning a child process to list the file info.

	var fs = require('fs');
	var spawnProcess = require('child_process').spawn;
	var filename = 'some/file'
	fs.watch(filename, function() {
	var list = spawnProcess('ls', ['-lh', filename]);
	var info = '';
	// listener get invoked every time a chunk of data is available. Data is read in chunks
	list.stdout.on('data', function(chunk) {
	output += chunk.toString();
	});
	// When child process exit, it emits the close event
	list.on('close', function() {
	var parts = output.split(/\s+/);
	console.dir([parts[0], parts[4], parts[8]]);
	});
	});

view raw watch_file_spawn_process.js hosted with ❤ by GitHub

Thanks