are "-", the data will be read from stdin or written to stdout as appropriate.
is supposed to be like rdiff, but can operate on directories. See
for more information. The syntax is similar.
This option is only used in
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
Enable gzip compression and decompression of signature and delta
modes, rdiffdir accepts
selection options including --exclude, --exclude-filelist-stdin, etc.
manual page for more information.
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