1. Logon as the user which you which to change the prompt. NOTE: You have to add this to your .profile file to have it survive reboot. This file is normally located /home/ directory and it is a hidden file so will be preceded by a period.
2. Export a new PS1 value with the text you want: In this example I am using ‘username@machine_name promt’

$export PS1='[\u@mylinux \W ]\$’
[oracle@mylinux ~ ]$

3. This completes changing command prompt on LINUX.
Larry Catt, OCP