vim Command-line ranges Search
Example
The commands below execute :command on every line from the first matching from to the first matching to:
:/from/,/to/command " from next 'from' to next 'to'
:?from?,/to/command " from previous 'from' to next 'to'
:?from?,?to?command " from previous 'from' to previous 'to'
See :help search-commands.
