All linux terminals (whether they're running in or
outside X etc.) support the following.
Note you can see mappings with `stty -a`

Key	Action	Notes
Shift+{PgUp,PgDown}	Scroll back,forward	The scroll buffer is configurable in each terminal program. For e.g. the scroll buffer is lost when you switch virtual consoles as it uses video memory.
Ctrl+l	redraw	Very handy if command line is messed up with wall messages, or mc session is corrupted for e.g.
Ctrl+s	pause
Ctrl+q	resume
Ctrl+u	del to start of line
Ctrl+w	del word (to left)