title: Set Network Interface Metric
body: <p>What is the proper way to set network interface metrics these days?</p>
  
  <p>I'm looking for command line ways for doing this. I'm currently using Arch Linux, but a distro-agnostic method would be preferred.</p>
  
  <p>Here is my failed attempt:</p>
  
  <pre><code>$ sudo ifconfig wlan0 metric 1
  SIOCSIFMETRIC: Operation not supported
  </code></pre>