[INFO] Usefull General User and Administration Commands [ irc.foco.co:6667 ]

/query <nick> <message>
Used to PM a specific user.
/away <message>
Used to notify someone if you are busy or not available.
If you leave the <message> blank, the notification will be reset and you're marked as available.
/msg <channel> <message>
Actually IRC handles only raw packages. This command is the same thing as you would write inside the chat.
Do not use this to launch commands.
/join <channel>
Used to join a channel (Join #osf and #osf.echo aswell)
If you replace <channel> with "0" you will part all channels you have joined.
/part <channel>
Used to part a specific channel
/ns <command> ( /msg NickServ <command> )
NickServ is an IRC bot at irc.foco.co:6667
Only account related commands!
Used to have the ability to use the commands of this server.
If you replace <command> with help, it will show you all NickServ commands and how to write the commands.
NickServ specific commands:
/ns help
Used to show all usable commands of NickServ.
/ns register <your password> <your e-mail>
Used to register your nick on this server.
/ns identify <your password>
Used to log in with your account.
Only works if your nick name has been already registered before.
/ns group <registered nick> <your password>
Used only if you have already a registered nick name and you just joined with another one.
Also used to add BNC's to your group.
/ns glist <nick>
Used to list all nick names which are in your nick name group.
Usefull to remove old BNC's and nick names.
/ns recover <registered nick> <your password>
Used to get your stolen nick name back.
/cs <command> ( /msg ChanServ <command> )
ChanServ is an IRC bot at irc.foco.co:6667
Only for channel operators and above!
Used to have the ability to use the commands of this server.
If you replace <command> with help, it will show you all ChanServ commands and how to write the commands.
ChanServ specific commands:
/cs help
Used to show all usable commands of ChanServ.
/cs voice <channel> <nick>
Used to give temporary voice to a specific nick.
/cs devoice <channel> <nick>
Used to temporary take the voice of a specific nick.
/cs vop <channel> add <registered nick>
Used to give permanent voice to a specific nick.
Works only if the nick name has been already registered.
/cs vop <channel> del <registered nick>
Used to take the permanent voice of a specific nick.
Only works if the nick name has been already registered.
Use "/cs devoice <channel> <nick>" to take the temporary voice aswell
/cs halfop <channel> <nick>
Used to give temporary half-operator rights to a specific nick.
/cs dehalfop <channel> <nick>
Used to take temporary the half-operator rights of a specific nick.
/cs hop <channel> add <registered nick>
Used to give permanent half-operator rights to a specific nick.
Only works if the nick name has been already registered.
/cs vop <channel> del <registered nick>
Used to take the permanent half-operator rights of a specific nick.
Only works if the nick name has been already registered.
/cs op <channel> <nick>
Used to give temporary operator rights to a specific nick.
/cs deop <channel> <nick>
Used to take the temporary operator rights of a specific nick.
/cs aop <channel> add <registered nick>
Used to give permanent operator rights to a specific nick.
Only works if the nick name has been already registered.
/cs aop <channel> del <registered nick>
Used to take the permanent operator rights of a specific nick.
Only works if the nick name has been already registered.
/cs sop <channel> add <registered nick>
Used to give channel administrator rights to a specific nick.
Only works if the nick name has been already registered.
/cs sop <channel> del <registered nick>
Used to take the channel administrator rights of a specific nick.
Only works if the nick name has been already registered.
/cs kick <channel> <nick> <reason>
Used to kick a specific nick from a channel.
The kick reason is optional.
/cs ban <channel> <nick> <reason>
Used to ban a specific nick from a channel.
The ban reason is optional.

In IRC there are plenty more commands which I didn't mention.