Here’s another change I automatically make when installing a new Linux Ubuntu Server.
I’m using Bash prompt, and that’s the standard prompt for all Debian (Ubuntu, Mint, etc…) installations, so the chances are that you are using Bash too.
The standard default color scheme for Linux directory listings (when you type in ls at the linux prompt) is hard to read. If you’re using putty on a Windows machine to connect to a linux server, the color scheme is dreadful. The deep blue is simply illegible for me.