16. Keep Your Computer Awake (macOS)
To prevent your Mac’s screen from dimming or initiating the screensaver, you can simply type “caffeinate” into a Terminal window and press Enter (use Ctrl+C to return to normal). Add “-t xx” to specify a duration for the wakefulness, with “xx” the number of seconds. So if you wanted an hour of wakefulness for example, you’d type “caffeinate -t 3600″.
