Ability to Change the default umask under OSX

Sometimes you may want to set a customer umask in OSX/Linux to ensure that default permissions are correct.   For example, Maybe I would like to assign read/write for both the owner of a file and the group membership.   You can do this by the following:

Setting a custom umask in OS X
https://support.apple.com/en-us/HT201684

To change this you will, as far as I know, need to use the Terminal.app and enter these two lines:

sudo launchctl config user umask 002

sudo launchctl config system umask 002

(You will need to enter your password after the first ‘sudo’ command.)

`man launchctl` will also tell you: “A reboot is required for changes made through this subcommand (launchctl config) to take effect.”