< == Using AlexSchroeder as my nick ==
< In 2003, I tried changing my nick from kensanata to !AlexSchroeder -- but it didn't work out. The general feeling was that the “teutonic touch” was having a negative effect. Specially my main channel, the EmacsChannel.
< In January 2006, I used a setup with two parallel connections, one using the nick kensanata on the Emacs related channels, and one using !AlexSchroeder on the wiki related channels. I didn't like it, either.
< So I'll remain known as kensanata on IRC.
/ircnet add -nick kensanata -user alex -realname "Alex Schroeder" -autosendcmd "/^MSG nickserv identify blabla; /wait -freenode 2000; " freenode /server add -auto -ircnet freenode irc.freenode.net /channel add -auto #emacs freenode /channel add -auto #wiki freenode /channel add -auto #oddmuse freenode /channel add -auto #rcirc freenode /channel add -auto #epfarms freenode /ignore -replies xah
Actually the list of channels varies. And these days I use rcirc instead of irssi.
First, be an op, and then ban somebody:
/mode #emacs +o kensanata
/msg chanserv op #emacs
/mode #emacs +b *!*user@*.domain
Or (illustrating quiet instead of ban, and registered users instead of mask) :
/mode #emacs +q $a:ams
The ban mask is as follows: NICK!USERNAME-ON-REMOTE-HOST@IP-ADDR-OR-DOMAIN. All three parts, the nick, username and host identifier, accept * as a shell style glob anywhere within themselves.
List all banned patterns:
/mode #emacs +b
/mode #emacs -b %borg!*@*
Set the channel to registered users only:
/mode #emacs +r
It seems that
/whois nick nick does this. 
Set Twitter to chat mode while offline:
account set twitter/mode chat
Set GTalk details:
account set jabber/ssl true account set jabber/server talk.google.com account set jabber/port 5223 save account on
acc gtalk set nick_format %full_name
Define external redirect: rcirc