Cisco IOS key bindings

Cisco IOS implements UNIX shell like key bindings. The following is what I often use. Once you get used to it, C-a or C-b is going to be your headache when connecting to a cisco device with GNU screen or a window multiplexer (e.g. tmux, byobu),  ;)

GENERAL
TAB key
Completes a partially typed CLI command
?
Displays help
C-p, Up arrow, C-n, Down arrow
Displays your previous command (history)
C-^
Breaks current processing command

C-r
Redisplays the current command line
C-z
Takes you back to privileged EXEC Mode

Deleting an Input
C-u
Deletes all characters before the cursor
C-w
Deletes a word (behind the cursor)

C-h

Deletes a character (behind the cursor)

Moving the Cursor Quickly

C-a
Places the cursor at the beginning of a line
C-e
Places the cursor at the end of a line
C-f
Moves the cursor forward one character
C-b
Moves the cursor backward one character

Esc-f, Esc f, C-[ f

Moves the cursor forward one word

Esc-b, Esc b, C-[ b

Moves the cursor backward one word