
  Keys             Action
 ------          ---------
 [0-9]  .........change the current line.
   $    .........go to the bottom of the file.
   ^    .........go to the top of the file.
+ or ;  .........advance to the next line.
   -    .........backup to the previous line.
   a    .........append text after the current line.
   c    .........change (i.e. replace) the current line.
   d    .........delete (i.e. remove) the current line.
f or /  .........find and advance to a line with a specified string.
   g    .........global replacement (entire file) of a string with another.
   i    .........insert text before the current line.
   n    .........advance to the next occurence of a string (re: f option)
   p    .........print (i.e. display) the current line.
   q    .........quit the editor.
   s    .........search and replace a string on the current line.
   w    .........write out all changes.
   P    .........asks for and then prints a range of lines.
   ?    .........display this file.

Note: input(s) can be ended or aborted by entering a '.' on a line by itself.
