Useful Terminal Commands

Remove app from Quarantine
sudo xattr -dr com.apple.quarantine /Applications/bigmac2.app

Boot up to Startup Manager
sudo nvram manufacturing-enter-picker=true

Disable Gatekeeper
sudo spctl --master-disable

Resign an app or package
codesign --force --deep --sign - /Applications/bigmac2.app

create a build
pkgbuild --component "bigmac2.app" --install-location "/Applications" bigmac2.pkg

convert dmg to read only
hdiutil convert -format UDZO in.dmg -o out.dmg

my favorite bootable backup command of all time
cd /Volumes
ls -a
sudo asr -s / -t Untitled -er -nov -nop

create dmg from folder
hdiutil create -volname volumeName -srcfolder /path/to/folder -ov -format UDZO name.dmg

cpu stuff
sysctl -n hw.packages
sysctl -n machdep.cpu.brand_string