Emacs

Command	Description
Ctrl+x Ctrl+s	Save
Ctrl+x Ctrl+c	Exit
Ctrl+-	Undo
Ctrl+	Set Mark point
Ctrl+w	Cut (Kill) a region
Ctrl+k	Cut (Kill) a line
Ctrl+u 2 Ctrl+k	Cut (Kill) two lines
Ctrl+y	Paste (Yank)
Ctrl+a	Move to beginning of line
Ctrl+e	Move to end of line
Meta(Option)+f	Move cursor forward a word
Meta(Option)+b	Move cursor backward a word
Ctrl+s	Forward search
Ctrl+r	Backward search
Meta(Option)+l	Convert word to lowercase
Meta(Option)+u	Convert word to uppercase
Meta(Option)+c	Convert word to initial caps
Ctrl+x Ctrl+L	Convert region to lower case
Ctrl+x Ctrl+U	Convert region to upper caps