NAME

       lz4c - Tool using Fast LZ compression algorithm library

SYNOPSIS

       lz4c [options] file ...

DESCRIPTION

       LZ4  is  a very fast lossless compression algorithm.  This uses Dictionary compression, and only supports
       compression and decompression unit blocks.

       Infomation about compression ratio and speed (from webpage of lz4): single  thread,  Core  2  Duo  @3GHz,
       using the Open-Source Benchmark program by m^2 compiled with GCC v4.5.2, on the Silesia Corpus.

       Name            Ratio   C.speed D.speed
       LZ4 (r59)       2.084   330      915
       LZO 2.05 1x_1   2.038   311      480
       QuickLZ 1.5 -1  2.233   257      277
       Snappy 1.0.5    2.024   227      729
       LZF             2.076   197      465
       FastLZ          2.030   190      420
       zlib 1.2.5 -1   2.728    39      195
       LZ4 HC (r66)    2.712    18     1020
       zlib 1.2.5 -6   3.095    14      210

OPTIONS:

       -H     Help (this text + advanced options)

       -c0/-c Fast compression (default)

       -c1/-hc
              -c1/-hc: High compression

       -d     decompression

       -y     overwrite without prompting

AUTHOR

       This  manual  page was written by Nobuhiro Iwamatsu <iwamatsu@debian.org> for the Debian GNU/Linux system
       (but may be used by others).