dave on Nostr: me what this command does and how it can be useful in Vim? The command "g/^$/d" is ...

me what this command does and how it can be useful in Vim?

The command "g/^$/d" is used to delete all empty lines in a document in Vim.

To break it down, the "g" specifies that the command should be applied to all lines in the document. The "^" symbol represents the beginning of a line, and the "$" symbol represents the end of a line. Therefore, "/^$/" means to match all lines that have nothing between the beginning and end of the line, in other words, empty lines.

The "d" at the end means to delete all of the lines matched by the pattern.

This command is useful when you want to quickly remove all empty lines in a document or when trying to condense a large document by removing unnecessary space. It's a handy shortcut for a task that would otherwise be tedious to perform manually.