Note: An EOT is often used to initiate other functions, such as releasing circuits, disconnecting terminals, or placing receive terminals in a standby condition. In Unix-like systems, the character is used to signal an end-of-file when typing at a terminal or terminal emulator.

In Unicode, the hexadecimal code number is 0x04. It can be referred to as control-D, ^D in the caret notation.

Source: From Federal Standard 1037C

See also

• C0 and C1 control codes
• ASCII