Now you’re ready to start mining. To do this, providing you're using Slush’s pool, you’ll use the following command:

./bfgminer -o stratum.bitcoin.cz:3333 -O username.worker:password -S all

The username section is composed of two parts, the username that you use to login to the pool, and worker which is the worker name you gave when you registered the worker. Finally, the password that was set when you created the worker.

That’s a lot of numbers, so I’ll make some of them a bit clearer.Current mining speed, typically calculated in megahashes or gigahashes. The number of hashes a second that can be calculated the better. A hash is an algorithm of converting numbers and letters into an undecryptable set of characters. So a miner is used to process millions of numbers in an effort to match the hash to guess the original number. The more hashes that can be processed the faster it is able to solve the problem.

Number of accepted shares. A share on a pool is to show the miner has successfully worked out a given problem, so the more shares you can process the better your reward from the pool.

Detailed information on accepted shares and pool updates. This is a running log of what is currently happening with the miners and basic pool information, such as messages of updates and when new blocks are found.

More information can be found at the BFGminer github site.