NAME

       rdiff - compute and apply signature-based file differences

SYNOPSYS

       rdiff [options] signature old-file signature-file

       rdiff [options] delta signature-file new-file delta-file

       rdiff [options] patch basis-file delta-file new-file

USAGE

       You  can  use  rdiff  to update files, much like rsync does.  However, unlike rsync, rdiff
       puts you in control.  There are three steps to updating  a  file:  signature,  delta,  and
       patch.

DESCRIPTION

       In  every  case  where  a filename must be specified, - may be used instead to mean either
       standard input or standard output as appropriate.  Be aware that if you  do  this,  you'll
       need  to  terminate  your  options with -- or rdiff will think you are passing it an empty
       option.

RETURN VALUE

       0 for successful completion,  1  for  environmental  problems  (file  not  found,  invalid
       options,  IO  error,  etc),  2 for a corrupt file and 3 for an internal error or unhandled
       situation in librsync or rdiff.

SEE ALSO

       librsync(3)

AUTHOR

       Martin Pool <mbp@samba.org>

       The original rsync algorithm was discovered by Andrew Tridgell.

       rdiff development has been supported by Linuxcare, Inc and VA Linux Systems.

                                   $Date: 2002/01/25 21:25:34 $                          rdiff(1)