ircII using an IRC channel named #7chan
|Developer(s)||Matthew R. Green|
ircII 20190117 / January 17, 2019
|Licence||3-clause BSD license|
ircII (pronounced i-r-c-two or irk-two, and sometimes referred to as IRC client, second edition) is a free, open-source Unix IRC and ICB client written in C. Initially released in the late 1980s, it is the oldest IRC client still maintained. Several other UNIX IRC clients, including BitchX, EPIC, and ScrollZ, were originally forks of ircII. For some,[who?] ircII set the standard of quality for IRC clients, however other clients have since overtaken ircII in terms of popularity. The application has been promoted as being "fast, stable, lightweight, portable, and easily backgrounded".
ircII was the first IRC client to implement Client-to-client protocol (CTCP) and the Direct Client-to-Client (DCC) protocol, and was the first client to implement file transfer capabilities over IRC. The CTCP protocol was implemented by Michael Sandrof in 1990 for version 2.1. The DCC protocol was implemented by Troy Rollo in 1991 for version 2.1.2, but was never intended to be portable to other IRC clients.
- Comparison of Internet Relay Chat clients
- Internet Citizen's Band (ICB)
- List of Internet Relay Chat commands
- "IRC clients primarily for the Unix shell". irchelp.org. May 9, 2004. Retrieved November 10, 2010.
Note on the pronunciation of ircII: Some of us like to call it "eye-are-see-two". However, the other main variant, "irk-two" is probably historically more accurate. It's also commonly called "urk-ee" which is most definitely wrong. Feel free to disagree with us, we're not going to argue the point to death. What's pretty certain is that it is "two" and not "ee".
- Levine, John R.; Young, Margaret Levine (May 9, 1997). More Internet for Dummies (3rd ed.). Hungry Minds. p. 150. ISBN 0-7645-0135-6.
- Hahn, Harley (January 1996). The Internet Complete Reference (2nd ed.). McGraw-Hill Osborne. p. 525. ISBN 0-07-882138-X.
The irc program is sometimes called ircII (IRC client, second edition) [...]
- Schenk, Thomas (July 7, 2000). Red Hat Linux System Administration Unleashed. Sams. ISBN 0-672-31755-9.
It is probably the oldest and most commonly used IRC client in the Linux/UNIX community.
- Piccard, Paul; Brian Baskin; George Spillman; Marcus Sachs (May 1, 2005). "Common IRC Clients by OS". Securing IM and P2P Applications for the Enterprise (1st ed.). Syngress. p. 428. ISBN 1-59749-017-2.
The ircII client is possibly the oldest usable client available today.
- "Traffic Patterns of September 2003". Internet News. Retrieved 2008-03-01.
- "IRC clients primarily for the Unix shell". IRC Help. Retrieved 2008-02-29.
- "ircII screenshot". IRC Help. Archived from the original on 2007-07-09. Retrieved 2008-03-01.
- Piccard, Paul; Brian Baskin; George Spillman; Marcus Sachs (May 1, 2005). "IRC Networks and Security". Securing IM and P2P Applications for the Enterprise (1st ed.). Syngress. p. 386. ISBN 1-59749-017-2.
The authors of the ircII software package originally pioneered file transfers over IRC.
- See the 'NOTES' and 'source/ctcp.c' files included with ircii-2.1.4e.tar.gz[permanent dead link]
- See the 'UPDATES' and 'source/dcc.c' files included with ircii-2.1.4e.tar.gz[permanent dead link]
- Troy Rollo (January 20, 1993). "/dcc". Newsgroup: alt.irc. Usenet: 1993Jan20.firstname.lastname@example.org.OZ.AU. Retrieved November 10, 2010.
- Rollo, Troy. "A description of the DCC protocol". irchelp.org. Retrieved November 10, 2010.
The first comment I should make is that the DCC protocol was never designed to be portable to clients other than IRCII. As such I take no responsibility for it being difficult to implement for other clients.
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