There are times you would want to prevent your mac from sleeping after it’s idle for a long time. OS X provides a inbuilt utility called Caffeinate which helps you achieve this. Caffeinate creates assertions to alter system sleep behavior. If no assertion flags are specified, caffeinate creates an assertion to prevent idle sleep. If a utility is specified, caffeinate creates the assertions on the utility’s behalf, and those assertions will persist for the duration of the utility’s execution.

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Pradeep Nayak

World Citizen, Dreamer, Photographer

Production Engineer

San Jose