I am very new to Linux. Having said this, I had a friend go on my RHEL machine and he somehow added a few random lines in a file, which will post every time I have completed a command. I am not sure what file he added it to, but I'd like to remove these messages, so I don't have to see them any longer, as they appear every stinkin' time I finish a command.
You might want to check the following files for changing or setting of
Here, "~" denotes your home directory,