When using a Command Prompt, it is awkward to view the output of a command (like DIR or GREP) when that command outputs more lines than can fit on the screen.
Sometimes, the Command Prompt allows you to scroll back through the output. However, you still can't search, or select and copy the output.
Typically, the more command is used as a filter to pause the output a screen at a time. However, it is still very limited - you can't scroll back or search.
You can solve all the above problems by using V to view the redirected output. You will be able to scroll and search the output, and even save it to a file.
No option is required to view redirected output. If you do not provide a file name on the command line, V will automatically check if there is any redirected output.