Some bash hotkeys:
Ctrl + A  Go to the beginning of the line you are currently typing on
Ctrl + E  Go to the end of the line you are currently typing on
Ctrl + L  Clears the Screen, similar to the clear command
Ctrl + U  Clears the line before the cursor position. If you are at the end of the line, clears the entire line.
Ctrl + R  Let’s you search through previously used commands
Ctrl + C  Kill whatever you are running
Ctrl + D  Exit the current shell
Ctrl + Z  Puts whatever you are running into a suspended background process. "fg" restores it.
Ctrl + W  Delete the word before the cursor
Ctrl + K  Clear the line after the cursor
Ctrl + T  Swap the last two characters before the cursor
Esc + T  Swap the last two words before the cursor
Some notes about reverse history search. It'll iterative show last command for your search query. For next item press Ctrl-R again. To search forward press Ctrl-S. (On some terminals this bind to freeze, press Ctrl-Q to defreeze) More about history navigation here

Using screen: