(tar.info.gz) Overwrite Old Files

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 Overwrite Old Files
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 '--overwrite'
      Overwrite existing files and directory metadata when extracting
      files from an archive.
 
      This causes 'tar' to write extracted files into the file system
      without regard to the files already on the system; i.e., files with
      the same names as archive members are overwritten when the archive
      is extracted.  It also causes 'tar' to extract the ownership,
      permissions, and time stamps onto any preexisting files or
      directories.  If the name of a corresponding file name is a
      symbolic link, the file pointed to by the symbolic link will be
      overwritten instead of the symbolic link itself (if this is
      possible).  Moreover, special devices, empty directories and even
      symbolic links are automatically removed if they are in the way of
      extraction.
 
      Be careful when using the '--overwrite' option, particularly when
      combined with the '--absolute-names' ('-P') option, as this
      combination can change the contents, ownership or permissions of
      any file on your system.  Also, many systems do not take kindly to
      overwriting files that are currently being executed.
 
 '--overwrite-dir'
      Overwrite the metadata of directories when extracting files from an
      archive, but remove other files before extracting.
 
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