File-handling and exiting

 
 <Ctrl-i>  		 Insert file at cursor position.

 <Ctrl-x>  <Ctrl-s>

               		 Save file (this may hang terminal; use 
                         <Ctrl-q> to restart).

 <Ctrl-x> <Ctrl-w>

               		 Write buffer contents to file.

 <Ctrl-x> <Ctrl-c>

               		   Exit emacs.