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Prevent macOS from going to sleep

Written byPhuoc Nguyen
22 Mar, 2021
By default, macOS goes to sleep if it hasn't been used for a certain amount of time. However, there are cases we want to prevent it from happening such as during a presentation, downloading a big file.
macOS provides a command to do that:
$ caffeinate
Pressing ctrl + C will bring it back to the normal mode.
The command also supports the time parameter. It indicates that macOS won't enter the sleep mode after a given number of seconds. For example, the command below asks macOS to awake in the next 10 minutes.
$ caffeinate -u -t 600
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