lzf —
compress and uncompress files using LZF algorithm
  
    | lzf | [ -bcdfhv] file
      [file [...]] | 
lzf is a simple program to compress or uncompress files
  using LZF (sometimes known as "Lempel-Ziv Fast") coding. LZF is
  extremely fast, about 75% of the performance of
  memcpy(3) for many inputs, while
  offering a moderate compression ratio, usually between 1.5:1 and 2:1.
When compressing, it removes each input file and replaces it with
    an output file with the suffix “.lzf”
    appended. When uncompressing, it removes each input file and replaces it
    with an output file with the suffix
    “.lzf” removed. If no files are
    specified as arguments, standard input and standard output are used as input
    and output respectively.
If invoked as lzf, the default mode of
    operation is to compress. If invoked as unlzf, the
    default mode of operation is to uncompress. If invoked as
    lzfcat, the default mode of operation is to
    uncompress to standard output.
The following options are available:
  - -b
- This option selects a compression blocksize. Small compression block sizes
      give poor compression and slow operation; the default of 64KiB is strongly
      recommended. Block sizes larger than 64KiB are silently reduced to 64KiB
      in order to not produce output incompatible with other versions of
      lzf.
- -c
- This option selects compression.
- -d
- This option selects decompression.
- -f
- This option forces overwrite of preexisting output files, if any.
- -h
- This option prints command usage.
- -v
- This option prints compression statistics for each file processed.
Thelzf program was first included with version 0.1 of
  Marc Lehmann's LZF library. It was rewritten for version 2.0 of the library to
  offer the current syntax, which is mostly compatible with other compression
  utilities such as gzip(1). The
  lzf program first appeared in NetBSD
  7.0.
Some versions of lzf install a program named
  “lzcat” instead of
  lzfcat. Because the (lzcat) name is also used by
  xz(1), in
  NetBSD the name lzfcat is used
  instead.