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Chapter 5 Setting General System Preferences 59
To enable or disable use of a network time server:
$ sudo systemsetup -setusingnetworktime (on|off)
To view the current network time server:
$ sudo systemsetup -getnetworktimeserver
To specify a network time server:
$ sudo systemsetup -setnetworktimeserver
timeserver
Viewing or Changing the Energy Saver Settings
You can use the systemsetup tool to view or change a server’s energy saver settings.
These can also be changed using the Energy Saver pane of System Preferences.
Viewing or Changing Sleep Settings
To view the idle time before sleep:
$ sudo systemsetup -getsleep
To set the idle time before sleep:
$ sudo systemsetup -setsleep
minutes
To see if the system is set to wake for modem activity:
$ sudo systemsetup -getwakeonmodem
To set the system to wake for modem activity:
$ sudo systemsetup -setwakeonmodem (on|off)
To see if the system is set to wake for network access:
$ sudo systemsetup -getwakeonnetworkaccess
To set the system to wake for network access:
$ sudo systemsetup -setwakeonnetworkaccess (on|off)
Viewing or Changing Automatic Restart Settings
To see if the system is set to restart after a power failure:
$ sudo systemsetup -getrestartpowerfailure
To set the system to restart after a power failure:
$ sudo systemsetup -setrestartpowerfailure (on|off)
To see how long the system waits to restart after a power failure:
$ sudo systemsetup -getWaitForStartupAfterPowerFailure
To set how long the system waits to restart after a power failure:
$ sudo systemsetup -setWaitForStartupAfterPowerFailure
seconds
Parameter Description
seconds
Must be a multiple of 30 seconds.