U+0004 "EOT" END OF TRANSMISSION Unicode Character

U+0004 "EOT" END OF TRANSMISSION is a control character originally defined for telegraphy and data communication, where it signaled the end of a message or data stream. In modern computing, this character is often used as a delimiter or termination marker, particularly in Unix-like operating systems where it can be entered by pressing Control+D to indicate "end of file" to a terminal or command-line input. Despite its historical role, EOT remains a fundamental part of the ASCII and Unicode standards, serving as a conceptual marker for the conclusion of a transmission or data sequence.

General Properties

Code Point	U+0004
Version Added	1.1
Unicode 1.0 Name	End of Transmission
Block	Basic Latin
General Category	Control
Canonical Combining Class	Not Reordered
Bidirectional Class	Boundary Neutral
Alias	END OF TRANSMISSION (control) EOT (abbreviation)

Encodings

HTML Decimal Encoding	
HTML Hex Encoding	
UTF-8 Encoding	0x04
UTF-16 Encoding	0x0004
UTF-32 Encoding	0x00000004
C/C++/Java Escape	\u0004

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Combining Mark
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Vertical Orientation	Rotated
Grapheme Cluster Break	Control
Word Break	Other
Sentence Break	Other