Control Keys

When typing commands, the following may be helpful:

ctrl-backspace - send alternate backspace character
Useful if you've got things set wrong and get '^H' or '^?' instead of deleting.  You can fix this more permanently via one of the following:
     $ stty erase ^H
     $ stty erase ^?

ctrl-l - refresh your screen
Helpful if you've scrolled past the end or something has corrupted your output

ctrl-u - erase entire line

ctrl-w - erase previous word