By default Ubuntu’s vim utility is configured to color code certain keywords, comments, extensions, etc.
I personally do not like this. So I just disable that feature. And while I am at it, I also enable the ruler, which displays the line number and the character position of the cursor.
To do that for all users, edit the /etc/vim/vimrc file add the following lines to it:
syntax off " Clear any font/color/hilighting set ruler " Enable the ruler
If you want to do that just for a particular user, create a .vimrc file in that user’s home directory (if it does not already exist) and add the same lines to it.