bzip2.1.preformatted

bzip2是一个免费的

bzip2(1)                                                 bzip2(1)



NNAAMMEE
       bzip2, bunzip2 - a block-sorting file compressor, v1.0.2
       bzcat - decompresses files to stdout
       bzip2recover - recovers data from damaged bzip2 files


SSYYNNOOPPSSIISS
       bbzziipp22 [ --ccddffkkqqssttvvzzVVLL112233445566778899 ] [ _f_i_l_e_n_a_m_e_s _._._.  ]
       bbuunnzziipp22 [ --ffkkvvssVVLL ] [ _f_i_l_e_n_a_m_e_s _._._.  ]
       bbzzccaatt [ --ss ] [ _f_i_l_e_n_a_m_e_s _._._.  ]
       bbzziipp22rreeccoovveerr _f_i_l_e_n_a_m_e


DDEESSCCRRIIPPTTIIOONN
       _b_z_i_p_2  compresses  files  using  the Burrows-Wheeler block
       sorting text compression algorithm,  and  Huffman  coding.
       Compression  is  generally  considerably  better than that
       achieved by more conventional LZ77/LZ78-based compressors,
       and  approaches  the performance of the PPM family of sta