lz4 (1.9.4)

*** LZ4 command line interface 64-bits v1.9.4, by Yann Collet ***
Usage : 
      lz4 [arg] [input] [output] 

input   : a filename 
          with no FILE, or when FILE is - or stdin, read standard input
Arguments : 
 -1     : Fast compression (default) 
 -9     : High compression 
 -d     : decompression (default for .lz4 extension)
 -z     : force compression 
 -D FILE: use FILE as dictionary 
 -f     : overwrite output without prompting 
 -k     : preserve source files(s)  (default) 
--rm    : remove source file(s) after successful de/compression 
 -h/-H  : display help/long help and exit 

Advanced arguments :
 -V     : display Version number and exit 
 -v     : verbose mode 
 -q     : suppress warnings; specify twice to suppress errors too
 -c     : force write to standard output, even if it is the console
 -t     : test compressed file integrity
 -m     : multiple input files (implies automatic output filenames)
 -r     : operate recursively on directories (sets also -m) 
 -l     : compress using Legacy format (Linux kernel compression)
 -B#    : cut file into blocks of size # bytes [32+] 
                     or predefined block size [4-7] (default: 7) 
 -BI    : Block Independence (default) 
 -BD    : Block dependency (improves compression ratio) 
 -BX    : enable block checksum (default:disabled) 
--no-frame-crc : disable stream checksum (default:enabled) 
--content-size : compressed frame includes original size (default:not present)
--list FILE : lists information about .lz4 files (useful for files compressed with --content-size flag)
--[no-]sparse  : sparse mode (default:enabled on file, disabled on stdout)
--favor-decSpeed: compressed files decompress faster, but are less compressed 
--fast[=#]: switch to ultra fast compression level (default: 1)
--best  : same as -12
Benchmark arguments : 
 -b#    : benchmark file(s), using # compression level (default : 1) 
 -e#    : test all compression levels from -bX to # (default : 1)
 -i#    : minimum evaluation time in seconds (default : 3s)