Some how-tos to get started with emacs
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Type "emacs first.c &" at the command prompt to start emacs

ctrl-x ctrl-c to exit emacs

ctrl-d		deletes the current character
backspace	deletes the previous character
ctrl-k		deletes a line, puts it into the "kill buffer."
ctrl-y		yanks the lines out of the kill buffer

ctrl-x ctrl-s	saves the file
ctrl-x ctrl-f	opens an existing file (of the name you enter) or
		creates a new file (of the name you enter)
ctrl-a 		goes to the beginning of a line
ctrl-e		goes to the end of a line
ctrl-v		moves down one page
esc-v		moves up one page

ctrl-h		is for help
ctrl-h	a	is for "apropos" help, which will search the help
		files for you.

The arrow keys work like normal to help you move around the buffer.