RDUP-UP(1) rdup RDUP-UP(1)NAMErdup-up - update a directory tree with a rdup archive
SYNOPSISrdup-up [OPTION]... DIRECTORY
DESCRIPTION
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.
Username and uids
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.
File ownership
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).
OPTIONS-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 path‐
name 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 path‐
name. 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 informa‐
tion 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 dis‐
allows it ('sshfs' for instance).
-h A short help message.
-V Show the version.
EXIT CODErdup-up return a zero exit code on success, otherwise 1 is returned.
AUTHOR
Written by Miek Gieben.
REPORTING BUGS
Report bugs to <miek@miek.nl>.
SEE ALSO
http:/www.miek.nl/projects/rdup/ is the main site of rdup. Also see
rdup(1), rdup-tr(1) and rdup-backups(7).
COPYRIGHT
Copyright (C) 2005-2010 Miek Gieben. This is free software. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR‐
POSE.
Licensed under the GPL version 3. See the file LICENSE in the source
distribution of rdup.
1.1.14 13 Dec 2008 RDUP-UP(1)
