caffeinate

caffeinate is used to caffeinate your computer, i.e. prevent it from automatically going to sleep when idle, it is primarily used by processes, applications like ‘Caffeine’ and ‘Amphetamine’ are wrappers to this command.

$ caffeinate

Where to install

‘caffeinate’ usually comes in built with OSX’s command-line tools. If you don’t have them, you can install them via:

xcode-select --install

Synopsis

caffeinate [-disu] [-t timeout] [-w pid] [utility arguments...]

Flags

Here are some cool flags that you could use within your program.

[-w pid]

Each running process has a unique pid. A good way to see what the pid for a particular process is:

pgrep <process_name>

Example:

#caffeinate till process with pid 4565 exits
caffeine -w 4565

[-t time]

Example:

#caffeinate for time seconds
caffeinate -t 5000

Below are some other flags and their descriptions, try them out!