This produces what we think is much more interesting output, and of course shows both sleep and wake events: 08:31:48.934423-0400 localhost powerd: Entering Sleep state due to 'Clamshell Sleep' So, let’s modify the search term like so: log show -style syslog | fgrep '' Instead of waking, we modified the search to just look for the word “sleep.” While there was a lot of material, we noticed that several useful items for both wake and sleep contained the term “.” We’ll guess powerd is the daemon (also known as a background process) and sleepWake is a sleep or wake event. This is all well and good and answered the original question, but we wanted to dig a bit deeper.

16:28:36.057070-0400 localhost kernel: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.ACDetach (Maintenance) This is using the new log command, asking it to show events using the old syslog style, and only display ones that match (that’s what fgrep does) the phrase “Wake reason.” Here’s some of the results: 16:07:59.228409-0400 localhost kernel: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.LidOpen (User) The answer to the user’s query as to what is waking up their Mac was to enter the following in the Terminal: log show -style syslog | fgrep 'Wake reason'

How to wake up mac pro