$BitchX username irc.server.net to connect to an irc server with that name

“/server” changes your current IRC server. For example, to connect to DALnet,
you’d type “/server irc.dal.net”.

Type “/disconnect” to disconnect from the current server without quitting BitchX.

“/ircname” changes the “Real Name” field on your whois. (This is the command
to cure the “I’m too lame to read BitchX.doc” Syndrome.)

“/ircuser” changes your IRC username (the part before the @ sign on your
whois). This is what mIRC users might often call an “Ident”.

“/irchost” shows your IRC hostname (the part after the @ sign on your whois).
It even lets you change it if “virtual hosts” are available.

Use “/quit” to quit BitchX.

“/clear” clears the screen.

“/help” lists all BitchX commands and lets you get more info on each of them.

BitchX Window Commands:

Using the on-screen windows is one of the trickiest parts of using BitchX,
and also one of the most crucial. Thus, I’ve made all the commands for
working with windows into a separate section.

Use “/window new” to create a new window. Use “/window kill” to delete the
current window.

Use “/window describe” to show information about the current window. (Note
that just typing “/window” will do this by default.)

Use “/window goto x” to make window number x the current window.

Use “/window size 10” to make the current window 10 lines long.

Use “/window channel #channelname” to switch the active window to
#channelname. This is how you switch between channels you’re in.

Use “/window help” to get information on other /window commands.

Oh, and one final tip: Don’t IRC while logged in as “root” on your own
system. Most IRC servers will immediately disconnect you for this.

Auto channel op a person:
/set aop on
/cset aop on
/set userlist on
/cset userlist on
/adduser [optionally add ‘-ppp’ for dynamic IPs] OPS,I_OPS (cannot have a password set)

Adding users using /adduser
/adduser nick #channel friend,i_ops
/cset * aop on
/set aop on
/save

BitchX toggles
BitchX has a built-in toggle menu to turn on and off commonly used features of the client.

To see this menu, type /toggle.

To turn something off or on, type /toggle [name]

Below are a list of toggles in bold. These are current as of 1.0c19.

auto_nslookup
ctcp_flood_protection
beep
pubflood
flood_protection
kickflood
dcc_autoget
flood_kick
msglog
llook
deopflood
joinflood
auto_whowas
verbose_ctcp
nickflood
cloak
operview
shitlist
kick_ops
annoy_kick
userlist
hacking
nick_completion
auto_rejoin
aop
auto_away
auto_reconn
bitch
dcc_fast
kick_if_ban
ftp_grab
mircs
http_grab
display_ansi
timestamp
log

Some stuff I found lol:
A few very basic command:
/whoois <nickname>    – Retrieve some information about a user.
/nick <nickname>      – Set your nickname
/join <channel>       – Join a channel in the active window
/part <channel>       – Leave a channel.
/msg <nickname>       – Send a private message to somebody
/msg =<nickname>      – Send a DCC message to somebody
/me <action>          – Perform an action in the channel.
/q <nickname>         – Dedicate a window to q “query” chat.
/q =<nickname>        – Dedicate a window to a DCC chat.
/away <reason>        – Let everybody in the channel know you’re not
– there.
/back                       – Let everybody in the channel know you’re back.

/dcc send <filename> <nickname> – Send <filename> to user
– <nickname>
/dcc get <nickname>   – Accept a DCC transfer from <nickname>
/dcc autoget on             – Automatically accept DCC transfers from anybody.
– Not a good idea if you spend a lot of time away
– from the keys.

Ctrl+X to swap between # (Channels)