vglobal: Execute commands on lines that do not match globally

Introduction#

:vglobal or :v is the opposite of :global or :g that operates on lines not matching the specified pattern (inverse).

:v/pattern/d

Example:

> cat example.txt
  TODO: complete this
  NOT this
  NOT that
  TODO: Complete that

Open the example.txt using vim and type :v/TODO/d in the Ex mode. This will delete all lines that do not contain the TODO pattern.