!$    matches last token in previous command                                  
  !#    matches token 0 in previous command                                     
  !*    matches tokens 1-N in previous command                                  
  !:n   matches nth token in previous command                                   
  !!    matches entire previous command                                         
  !m    matches command "m" in history list                                     
  !m:n  matches nth token in command "m" in history list                        
  !m:gs/a/b/  global search-and-replace on command "m" in history               
              list (f!ing cool!)                                                
                                                                                
  CTRL-r   activates reverse search... i.e. searches back through               
           history list for the pattern you type in, and bring up               
           the command found with that pattern in it                            
  CTRL-a   move to beginning of line                                            
  CTRL-e   move to end of line                                                  
  CTRL-b   move back one char                                                   
  CTRL-f   move forward one char                                                
  ALT-b    move back one word                                                   
  ALT-f    move forward one word                                                
  CRTL-k   delete to end of line