Key Board Shortcuts for Ubuntu Linux Terminal

Ctrl-a     Move to the start of the line.
Ctrl-e     Move to the end of the line.
Alt-] x     Moves the cursor forward to the next occurrence of x.
Alt-Ctrl-] x     Moves the cursor backwards to the previous occurrence of x.
Ctrl-u     Delete from the cursor to the beginning of the line.
Ctrl-k     Delete from the cursor to the end of the line.
Ctrl-w     Delete from the cursor to the start of the word.
Ctrl-y     Pastes text from the clipboard.
Ctrl-l     Clear the screen leaving the current line at the top of the screen.
Ctrl-x Ctrl-u     Undo the last changes. 
Alt-r     Undo all changes to the line.
Alt-Ctrl-e     Expand command line.
Ctrl-r     Incremental reverse search of history.
Alt-p     Non-incremental reverse search of history.
!!     Execute last command in history
!abc     Execute last command in history beginning with abc
!n     Execute nth command in history
^abc^xyz     Replace first occurrence of abc with xyz in last command and execute it