Vanitygen: How ot store all generated addresses? i want to know it is possible to store all generated addresses into file (or DB). 
How it can be? 
For example i need to generate 1,000,000,000 addresses, with vanitygen speed about 50M per second.
./vanitygen -k 1 -o output.txt


will generate addressses until you stop it, and will save the addresses to output.txt. It won't be formatted, so it's a better idea to use Vanitygen Plus's -z option, which formats the output as CSV.