psutil 5.4.0

Process and system monitoring library
Documentation 
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use std::thread;
use std::time::Duration;

use psutil::process::processes;

// TODO: update to actually match the output of `ps aux`

fn main() {
	let processes = processes().unwrap();

	thread::sleep(Duration::from_secs(1));

	println!(
		"{:>6} {:>4} {:>4} {:.100}",
		"PID", "%CPU", "%MEM", "COMMAND"
	);

	for p in processes {
		let mut p = p.unwrap();

		// TODO the percent formatting is not working
		println!(
			"{:>6} {:>2.1} {:>2.1} {:.100}",
			p.pid(),
			p.cpu_percent().unwrap(),
			p.memory_percent().unwrap(),
			p.cmdline()
				.unwrap()
				.unwrap_or_else(|| format!("[{}]", p.name().unwrap())),
		);
	}
}