When editing large files in vi or vim line numbers become very important.
This is how you turn on/off line numbers in vi or vim.
Turn on line numbers
While vi is in edit mode and not inserting type the following
:set number
Turn off line numbers
While vi is in edit mode and not inserting type the following
:set nonumber
Author comments are in a darker gray color for you to easily identify the posts author in the comments
My favourite (short cut mode), :se nu
Thanks man
If you want this to be permanent, you should enter it into your ~/.vimrc file. In fact go search online for .vimrc files, there are many good tips you can find in them.