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End-of-Text character

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Not to be confused with End-of-Transmission-Block character or End-of-Transmission character.
For other end-of-text characters, see End mark (disambiguation).

The End-of-Text character (ETX) is a control character used to inform the receiving computer that the end of a record has been reached. This may or may not be an indication that all of the data in a record have been received. It is often used in conjunction with Start of Text (STX)[1] and Data Link Escape (DLE), e.g., to distinguish data frames in the data link layer. All this use is pretty much obsolete, except in modem communication (AT command set).[2]

In both ASCII and EBCDIC, ETX is code point 0x03, often displayed as ^C, and a (ASCII) terminal can send it by typing Ctrl+C.

Control-C is often used to interrupt a program or process, a standard that started with Dec operating systems.[citation needed] In TOPS-20, it was used to gain the system's attention before logging in. mIRC uses ETX as the escape character to start a command to set the color.

See also

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References

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  1. ^ Cerf, Vint (October 16, 1969). ASCII format for Network Interchange. IETF. doi:10.17487/RFC0020. STD 80. RFC 20. Retrieved February 7, 2024.
  2. ^ Simcom SIM7000 Series - AT Command Manual
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