Change a user name on mac AND background color

[abdul]

Hello everyone..


When I open the terminal, it appears a user that I didn't make.. I need help how to whether change that user name or delete it, please see the picture:

as you see in the picture, the user (tssadmindb) I just want to change that..


Another thing.. I am trying to change my terminal background by going to preferences, but it doesn't work..


Thanks in advance..

 

[Cory Cooper]

Hello and welcome.

-I assume you purchased this Mac used?
-Which model Mac?
-Which version of OS X - 10.10.x Yosemite, correct?
-Are there any other users?

Account Name
***Make sure you have a current Time Machine or other backup before proceeding.

I don't recommended changing the account/home directory name (short) of a user, but it can be done:
Change the account name and home directory name on your Mac

Terminal
-What steps are you taking to change the background?
-Have you tried the presets?

C