nvram

Manipulate firmware variables. More information: https://ss64.com/osx/nvram.html.

• [p]rint all the variables stored in the NVRAM:

nvram -p

• [p]rint all the variables stored in the NVRAM using [x]ML format:

nvram -xp

• Modify the value of a firmware variable:

sudo nvram {{name}}="{{value}}"

• [d]elete a firmware variable:

sudo nvram -d {{name}}

• [c]lear all the firmware variables:

sudo nvram -c

• Set a firmware variable from a specific [x]ML [f]ile:

sudo nvram -xf {{path/to/file.xml}}