Provided by: duplicity_0.6.23-1ubuntu4.1_amd64 bug


       rdiffdir - compute and apply signatures and diffs to directories


       rdiffdir [options] sig[nature] basis_dir signature_file

       rdiffdir [options] delta full_sigtar {incr_sigtar} new_dir delta_file

       rdiffdir [options] patch basis_dir delta_file

       rdiffdir [options] tar basis_dir tar_file

       If  signature_file  or  delta_file are "-", the data will be read from stdin or written to
       stdout as appropriate.


       rdiffdir is supposed to be like rdiff, but can operate on directories.  See  rdiff(1)  for
       more information.  The syntax is similar.

       Regarding  the  delta  command,  the full_sigtar operand is a signature_file written by an
       earlier signature or tar  command  (the  latter  using  the  --write-sig-to  option).  The
       optional  incr_sigtar operands are signature files written by earlier delta commands using
       the --write-sig-to option. This way the Nth invocation of the delta command can parse (and
       extend)  the  signature  chain that has been founded by the first signature or tar command
       with a full signature, and then extended by the  subsequent  N-1  delta  invocations  with
       incremental  signatures.  It  is  the  responsibility  of  the  user to specify the sigtar
       operands in logical increment order.


       --write-sig-to sigfile
              This option is only used in delta and tar modes.   When  specified,  rdiffdir  will
              write  a  signature  of  the directory it is processing to sigfile.  The end result
              will be a delta and a new signature calculated over the same data.

       -z, --gzip-compress
              Enable gzip compression and decompression of signature and delta files.


       In signature and delta modes, rdiffdir accepts duplicity-like selection options  including
       --exclude,  --exclude-filelist-stdin,  etc.   See  the  duplicity(1)  manual page for more


       Hard links are currently unsupported (they will be treated as non-linked regular files).

       Bad signatures will be treated as empty instead of logging appropriate error message.


       Ben Escoto <>


       duplicity(1), python(1), rdiff(1), rdiff-backup(1).