"Attempting extraction of symbolic links as hard links"

              unknown‐cast
                     "%s: Unknown file type ’%c’, extracted as normal file"

              ignore‐newer
                     "Current %s is newer or same age"

              unknown‐keyword
                     "Ignoring unknown extended header keyword ’%s’"

              decompress‐program
                     Controls verbose description of failures occurring when trying to run alternative decompressor programs.  This warning is disabled by default (unless --verbose is used).  A common example of what you can
                     get when using this warning is:

                     $ tar ‐‐warning=decompress‐program ‐x ‐f archive.Z
                     tar (child): cannot run compress: No such file or directory
                     tar (child): trying gzip

                     This means that tar first tried to decompress archive.Z using compress, and, when that failed, switched to gzip.

              record‐size
                     "Record size = %lu blocks"

              Keywords controlling incremental extraction:

              rename‐directory
                     "%s: Directory has been renamed from %s"
                     "%s: Directory has been renamed"

              new‐directory
                     "%s: Directory is new"

              xdev   "%s: directory is on a different device: not purging"

              bad‐dumpdir
                     "Malformed dumpdir: ’X’ never used"

       -w, --interactive, --confirmation
              Ask for confirmation for every action.

   Compatibility options
       -o     When creating, same as --old-archive.  When extracting, same as --no-same-owner.

   Size suffixes
               Suffix    Units                   Byte Equivalent
               b         Blocks                  SIZE x 512
               B         Kilobytes               SIZE x 1024
               c         Bytes                   SIZE
               G         Gigabytes               SIZE x 1024^3
               K         Kilobytes               SIZE x 1024
               k         Kilobytes               SIZE x