Please post what Operating System and version you are running.
Please post the output from the command
date on your system (there is much variation).
Quote:
Right now, it says "Goodbye $USER"
It does not.
Quote:
but I'd really like it to say Have a Great Day if it's before 4pm and Have a Good Night if it's after 4pm
In your code samples neither phrase occurs.
Btw: What Shell do you have?