The user is allowed to do anything with the licensed material. Should the user of the product meet the author and consider the software useful, he is encouraged to buy the author a beer "in return" (or, in some variations, to drink a beer in the author's honor).
"THE BEER-WARE LICENSE" (Revision 42): wrote this file. As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return Poul-Henning Kamp
Describes the ability to use the software for commercial purposes.
Describes the ability to modify the software and create derivatives.
Describes the ability to distribute original or modified (derivative) works.
Describes the ability for you to grant/extend a license to the software.
Including the full text of license in modified software.
Describes the ability to change software's name if modified/distributed.
Describes the ability to place warranty on the software licensed.
Describes whether the library can be compiled into the program (linked at compile time rather than runtime, aka dynamic linking).
Describes whether the original copyright must be retained.