+ zstd -h
Compress or decompress the INPUT file(s); reads from STDIN if INPUT is `-` or not provided.

Usage: zstd *OPTIONS...* *INPUT... | -* *-o OUTPUT*

Options:
  -o OUTPUT                     Write output to a single file, OUTPUT.
  -k, --keep                    Preserve INPUT file(s). *Default*
  --rm                          Remove INPUT file(s) after successful (de)compression.

  -#                            Desired compression level, where `#` is a number between 1 and 19;
                                lower numbers provide faster compression, higher numbers yield
                                better compression ratios. *Default: 3*

  -d, --decompress              Perform decompression.
  -D DICT                       Use DICT as the dictionary for compression or decompression.

  -f, --force                   Disable input and output checks. Allows overwriting existing files,
                                receiving input from the console, printing ouput to STDOUT, and
                                operating on links, block devices, etc. Unrecognized formats will be
                                passed-through through as-is.

  -h                            Display short usage and exit.
  -H, --help                    Display full help and exit.
  -V, --version                 Display the program version and exit.

+ zstd -H
...
Advanced options:
...
+ zstd --help
...
Advanced options:
...
