SYNOPSIS
caffeinate COMMAND [ARGUMENT...]DESCRIPTION
Caffeinate runs the given command and prevents the desktop becoming idle while it is run, hence stops screen savers or power-saving activating even if the machine is not being used.It is usually more convenient to use the fully-automatic caffeine(1); caffeinate may be useful when it is impractical or impossible to run a program in full-screen mode, or to prevent automatic suspend kicking in during a long-running unattended command, such as a system update.