"At the bottom of the Vim editor, you will find two things: the
command-line buffer (where you can input commands) and the status
line. In the default configuration, Vim has a simple and
non-informative status line, but you can make the status line a lot
more informative with simple methods.
"To the right, the default status line shows the number of the
current row and column and to the left it shows name of the file
currently open (if any)..."