Press [ Tab ] till you see a cursor on the right side.
Enter your username or scan your barcode to [ login ].
If the bar changed to your name you are in.
After login you have 10 seconds to use one of the following functions:
# show balance
> balance
# deposit 10 euro
> deposit 10
# buy a product
> [scan the barcode of the product]
# buy another product
> [scan the barcode of the other product]
# add a user
> useradd foo
# withdraw 10 euro
> take 10
# give 10 euro to user foo
> give foo 10
# add a product to the product-database
> productadd 0123456789 Name of the product
# sell 20 bottles of mate to the bar for 1.50 per piece
> sell 012345789 20 1.50
~help
~barusers
~shame
~stock
~stock <name>
~search <name>
# user bound
~balance
~give <username-of-receiver> <amount[float]>
~buy <name of product>
~buy <amount[int]> <name of product>
~aliases
~aliasadd <alias>
~aliasremove <alias>
~useradd <username/ircnick>
~productadd <barcode> <name of product>
~sell <amount[int]> <name of product> <price[float]>