I need to
vim the file found at
/System/Library/LaunchDaemons/com.apple.pfctl.plist but the permissions will not allow it. Even when I run
sudo vim /System/Library/LaunchDaemons/com.apple.pfctl.plist and enter my password, VIM throws me a warning and says that I'm editing a readonly file. Any ideas how to do this?
I'm running OS X 10.11 El Capitain.