I think this video should help get you started.
https://www.youtube.com/watch?v=0owB3EXcyQ0 (This video is made by
Brendoom)
This more official post is also very helpful if you prefer to do some reading rather then watching a video,
https://forums.ulyssesmod.net/index.php?topic=3254.0You probably want to focus on these commands from the post above...
ULX Help:
If a command can take multiple targets, it will usually let you use the keywords '*' for target
all, '^' to target yourself, '@' for target your picker, '$<userid>' to target by ID (steamid,
uniqueid, userid, ip), '#<group>' to target users in a specific group, and '%<group>' to target
users with access to the group (inheritance counts). IE, ulx slap #user slaps all players who are
in the default guest access group. Any of these keywords can be preceded by '!' to negate it.
EG, ulx slap !^ slaps everyone but you.
You can also separate multiple targets by commas. IE, ulx slap bob,jeff,henry.
All commands must be preceded by "ulx ", ie "ulx slap"
Category: User Management
o ulx addgroup <group> [<inherits from>] - Create a new group with optional inheritance.
o ulx adduser <player> <group> - Add a user to specified group.
o ulx adduserid <SteamID, IP, or UniqueID> <group> - Add a user by ID to specified group.
o ulx groupallow <group> <command> [<access tag>] - Add to a group's access.
o ulx groupdeny <group> <command> - Remove from a group's access.
o ulx removegroup <group> - Removes a group. USE WITH CAUTION.
o ulx removeuser <player> - Permanently removes a user's access.
o ulx removeuserid <SteamID, IP, or UniqueID> - Permanently removes a user's access by ID.
o ulx renamegroup <current group> <new group> - Renames a group.
o ulx setgroupcantarget <group> [<target string>] - Sets what a group is allowed to target
o ulx userallow <player> <command> [<access tag>] - Add to a user's access.
o ulx userallowid <SteamID, IP, or UniqueID> <command> [<access tag>] - Add to a user's access.
o ulx userdeny <player> <command> [<remove explicit allow or deny instead of outright denying: 0/1>] - Remove from a user's access.
o ulx userdenyid <SteamID, IP, or UniqueID> <command> [<remove explicit allow or deny instead of outright denying: 0/1>] - Remove from a user's access.
o ulx usermanagementhelp - See the user management help.
Category: Utility
o ulx help - Shows this help.
o ulx resettodefaults [<string>] - Resets ALL ULX and ULib configuration!
o ulx who - See information about currently online users.
Category: Menus
o xgui <show, hide, toggle> - Opens and/or closes XGUI. (say: !xgui, !menu) (alias: ulx menu)
Hope this helps you out, and if you have any additional questions please don't hesitate to ask.