Using a text editor (Vim) to edit text. Particularly in this case use of the :g/ and :v/ commands to filter text and edit all lines matching a pattern. Excel s

Using a text editor (Vim) to edit text. Particularly in this case use of the :g/ and :v/ commands to filter text and edit all lines matching a pattern. Excel scripting and filtering and text functions. (Basic things, like looking for a particular string, and filtering a list to just those containing it using formula functions).