UNIX understands several control-key commands, commands you enter by holding down the control key (Ctrl) while striking a second key.




CTRL + U - cut text from cursor position to the beginning of the command line

CTRL + S - freezes the screen and stops any display on the screen from continuing

CTRL + Q - un-freezes the screen and lets screen display continue

CTRL + C - interrupts a running program

CTRL + \ - same as CTRL - C but stronger (used when terminal doesn't respond)

CTRL + Z - suspends a running program (use the fg command to continue the program)

CTRL + H - deletes last character typed

CTRL + W - deletes last word typed

CTRL + U - deletes last line typed

CTRL + R - searches text from history

CTRL + D - ends text input for many UNIX programs, including mail and write.

CTRL + Y - paste the string in buffer/clipboard