SYNOPSIS
- lz4 [OPTIONS] [-|INPUT-FILE] <OUTPUT-FILE>
-
DESCRIPTION
lz4 is an extremely fast lossless compression algorithm. It is based on the LZ77 family of compression scheme. At the compression speed of 400 MB/s per core, lz4 is also scalable with multi-core CPUs. It features an extremely fast decoder, with speed in multiple GB/s per core, typically reaching the RAM speed limits on multi-core systems. lz4 supports following options
OPTIONS
- -1
-
fast compression (default) - -9
-
high compression - -d
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decompression - -f
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overwrite output without prompting - -h/-H
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display help/long help and exit - -V
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display Version number and exit - -v
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verbose mode - -q
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suppress warnings; specify twice to suppress errors too - -c
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force write to standard output, even if it is the console - -t
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test compressed file integrity - -z
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force compression - -l
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use Legacy format (useful for Linux Kernel compression) - -B#
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block size [4-7](default : 7)
B4= 64KB ; B5= 256KB ; B6= 1MB ; B7= 4MB - -BD
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block dependency (improve compression ratio) - -BX
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enable block checksum (default:disabled) - -Sx
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disable stream checksum (default:enabled) - -b
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benchmark file(s) - -i#
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iteration loops [1-9](default : 3), benchmark mode only
AUTHOR
Yann Collet