Knowing how to check line numbers in a vi editor can be useful for a variety of reasons. For example, you may need to know the line number of a specific piece of code in order to debug it, or you may need to provide a line number to someone else so that they can locate a specific piece of information in a file.
There are a few different ways to check line numbers in a vi editor. One way is to use the “:set number” command. This command will toggle the display of line numbers in the editor. If line numbers are not currently being displayed, they will be displayed after you enter this command. If line numbers are currently being displayed, they will be hidden after you enter this command.