Welcome to EMC! For commands and stuff, you can check out the wiki for the one you're looking for or just ask in chat (or here). As for shops, EMC uses Rupees as currency. Here's a more in depth guide to assist you on how to buy and also sell: https://empireminecraft.com/wiki/buying-selling-with-player-shops/
Any time you're online and need help just ask, plenty of us will be happy to help. It takes a minute to get oriented on EMC and we all were helped when we started too.
Welcome to EMC! Let us know if you have any questions. We have many friendly community members who can help you get started.
Hi Riththeone, I have only been on the server for 10 days and it is my first time too. It took me hours to find EMC and I have enjoyed it immensely. I hope you do too. See you around.