Use NO_DEFAULT in a container or profile login script if you do not want the default user login script to run and you do not want to create any user login scripts.
NOTE:If you have created a user login script for a user, that login script executes whether or not the NO_DEFAULT command is in the container or profile login script. You can add the EXIT command to the end of a container login script to prevent execution of all user login scripts.
NO_DEFAULT