HCS Blog

Enter this command:

defaults write -g com.apple.keyboard.fnState -boolean true

The following commands are used to create hidden users in OS X Yosemite:

Hide the user:

OS X Yosemite 10.10

Clear MDNS (Multicast DNS) and UDNS (Unicast DNS)

sudo discoveryutil udnsflushcaches

Get UDNS cache stats:

sudo discoveryutil udnscachestats


Get multicast DNS cache:

sudo discoveryutil mdnscachestats

System Information, and the plethora of information about your Mac computer that you can obtain from it, can also be accessed from the command line using the system_profiler command. By default, it outputs all information directly to the screen, so you may want to redirect the stdout to a file.

system_profiler > /Users/your-account-name/Desktop/report.txt

The commands below will remove the settings from the Ethernet and Wi-Fi interfaces.  You can lookup more features using the man command for networksetup.  IE.. man networksetup

networksetup -setsearchdomains "Wi-Fi" "Empty"