Editing Text
<Delete> delete the character just before the cursor
C-d delete the next character after the cursor
M-<Delete> kill the word immediately before the cursor
M-d kill the next word after the cursor
C-k kill from the cursor position to end of line
M-k kill to the end of the current sentence
M-w Kill region and yank back
C-y Yank (paste) from last kill
M-y Yank from previous kill
C-t Transpose characters before and after point
C-x u or C-S-_ Undo last edit