These work in all BASH terminals, including Konsole, XTerm and gnome-terminal.

Here are the most common 'shortcuts':

• Pressing the up, or down arrow, BASH will cycle through the list of recently used commands
  
  
• Typing part of a command and then pressing [tab] key, BASH will finish the command name for you. If there is more then one command, all of them will be displayed on pressing [tab] a second time.
  
  
• Typing part of a filename and then pressing [tab] key, BASH will finish the filename for you. Again, if there is more than one option, all are displayed on pressing [tab] again.
  
  
• Press ctrl-R. A search box comes up for you to find previous commands:
  
  
• ! commands - This will search the History and execute a command. The command will be displayed before execution.
  • !! - Execute the last command
    
  • !x - Execute the last command starting with x
    
  • !?abc - Execute last command containing abc
    
  
  
• ctrl-U and ctrl-K to 'cut' from the cursor to the beginning and the end of the line respectively. This can later be pasted using ctrl-Y.
  
  
• ctrl-D exits a terminal, same as typing 'exit'.
  
  
• ctrl-L clears the screen, same as typing 'clear'.
  
  
• ctrl-C breaks/cancels any ongoing operation.
  
  
• Ctrl-S stops the ongoing operation.
  
  
• Ctrl-Q to start (or resume, after a Ctrl-S).
  

Want to add some more to this? There are many more...