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RDUP-UP(1) rdup RDUP-UP(1)

rdup-up - update a directory tree with a rdup archive

rdup-up [OPTION]... DIRECTORY

With rdup-up you can update an (possibly) existing directory structure with a rdup archive.

The rdup archive has to be given to rdup-up's standard input.

rdup outputs both the user name and uid, the receiving system (which may be a totally different system) checks if the user name and uid match. If the user name and uid don't match the (numeric) uid is used on the file. The same holds true for the group name and gid.

As rdup supports backups via SSH the following situation can occur: locally rdup is run a root, but rdup-up is run as a non-root user (the one logged in via SSH). In this case the original owner- and group name can not be set. If this happens rdup-up will create a ._rdup_. file which contains the user/group information, also see the -u flag for rdup-tr (and rdup).

-n
Do a dry-run and do not create anything on disk.
-t
Create DIRECTORY (ala mkdir -p) if it does not exist.
-s N
Strip N path components from a pathname. If the resulting pathname is empty after this operation it is skipped. Be careful however with the following structure:

/foo /foo/bar /foo/bar/bla.txt /foo/blork/bla.txt

With rdup-up -s2 this will leave:

<empty> <empty> /bla.txt /bla.txt

And the last 'bla.txt' will over write the previous one, this will happen without warnings.

-r PATH
This option is related to the -s option, but works different. The string PATH is removed from (the beginning of) each pathname. With -r /home/backup the pathname /home/backup/bin/mycmd becomes /bin/mycmd. The same could be done with -s 2, but then you need to count the slashes. Note -s is always performed before -r.
-v
Be more verbose and echo the processed files to standard output.
-T
Show a table of contents of the rdup stream received (ala tar -tf -). With -T the directory argument is optional. -T unsets any verbose (-v) options.
-u
Do not create a ._rdup_. file which contains user/group information when failing to chown the actual file or directory. Useful when restoring a backup when you do not want to see ._rdup._-files being created.
-q
Silence 'chown' failures even when running as root. This can be helpful when the file system does not implement 'chown' or disallows it ('sshfs' for instance).
-h
A short help message.
-V
Show the version.

rdup-up return a zero exit code on success, otherwise 1 is returned.

Written by Miek Gieben.

Report bugs to <miek@miek.nl>.

http:/www.miek.nl/projects/rdup/ is the main site of rdup. Also see rdup(1), rdup-tr(1) and rdup-backups(7).

Copyright (C) 2005-2010 Miek Gieben. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Licensed under the GPL version 3. See the file LICENSE in the source distribution of rdup.

13 Dec 2008 1.1.14

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