7z — File archiver with a high compression ratio.
# source: tldr · verified

Examples:
  # add a file or directory to a new or existing archive
    $ 7z a path/to/archive.7z path/to/file_or_directory
  # Encrypt an existing archive (including filenames)
    $ 7z a path/to/encrypted.7z -ppassword -mhe=on path/to/archive.7z
  # Extract an archive preserving the original directory structure
    $ 7z x path/to/archive.7z

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