bzip2是一个免费的，高品质的数据压缩。它通常压缩档案，以10 ％至15 ％的最佳可行技术,同时被周围的快两倍，在压缩和快六倍于减压。 -bzip2 is a free, high-quality data compression. It is usually compressed files to 10-15 of the best available technology, at the same time was around twice as fast as in the com