You can replace sections of text using the R command. Place the
cursor on the first letter in ``party'', press 
, and type the
word ``hungry''.
Using R to edit text is much like the i and a commands, but R overwrites text, instead of inserting it.
The r command replaces the single character under the cursor. For example, move the cursor to the beginning of the word ``Now'', and type r followed by C, you'll have:
The ``~'' command changes the case of the letter under the
cursor from upper- to lower-case, and vise versa, For example, if you
place the cursor on the ``o'' in ``Cow'', above, and repeatedly press
, you'll end up with:
