screen: History

 
 12.5 History
 ============
 
  -- Command: history
      ('C-a {', 'C-a }')
      Usually users work with a shell that allows easy access to previous
      commands.  For example, 'csh' has the command '!!' to repeat the
      last command executed.  'screen' provides a primitive way of
      recalling "the command that started ...": You just type the first
      letter of that command, then hit 'C-a {' and 'screen' tries to find
      a previous line that matches with the prompt character to the left
      of the cursor.  This line is pasted into this window's input queue.
      Thus you have a crude command history (made up by the visible
      window and its scrollback buffer).