There aren't raw 'commands'. If you mean all the RAW numbers and what they do then you can check out
www.mirc.net/raws/ - it's down right now unfortunately, but should be back soon, check in another 24 hours.
Next to that there is Jeepster's Numeric File, which you can download from
http://mirc.stealth.net/download/ - use the 32-bit version.
I don't know of a place which lists every raw in existence for all networks. Some raws are specific to a few networks, whereas some are common to all. It makes it hard to make a full list.
Regards,