Server related commands such as user modes, joining channels, and changing nicks, can all be found here. A full listing of what is returned from /helpop.

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/|\ Anope \|/ Unreal /|\

[ UserCMDS | OperCMDS | SVSCMDS | UModes | ChModes | SnoMasks | OFlags | ExtBans ]

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-OperCMDS-

MODULE

This will give you a list of all modules loaded.
Depending on whether you are a normal user or an oper
it will give different output.

-- normal user: --
Syntax of command: MODULE
Output of command: *** name - (description) [3RD]
the [3RD] flag is present if it's an 3rd party module.

-- ircop: --
Syntax of command: MODULE [server]
Output of command: *** name - version (description) [optional flags]
flags can be:

[PERM]: permanent module (not possible to unload/reload)
[Unloading]: module is in the process of unloading
[3RD] 3rd party module
[OLD?] Lacking Mod_Version, forgot to recompile an old beta* module?

Additionally you'll see a list of which hooks and command
overrides are present (the hook number can be looked up in
include/modules.h).