nvram
Manipulate firmware variables. tldr-pages
On macOS
macOS
print all the variables stored in the NVRAM
nvram -pIdentifyprint all the variables stored in the NVRAM using xML format
nvram -xpIdentifyModify the value of a firmware variable
sudo nvram name="value"Identifydelete a firmware variable
sudo nvram -d nameIdentifyclear all the firmware variables
sudo nvram -cIdentifySet a firmware variable from a specific xML file
sudo nvram -xf path/to/file.xmlIdentify