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WHAT IS RSYNC?
--------------
rsync is a replacement for rcp that has many more features.
rsync uses the "rsync algorithm" which provides a very fast method for
bringing remote files into sync. It does this by sending just the
differences in the files across the link, without requiring that both
sets of files are present at one of the ends of the link beforehand.
At first glance this may seem impossible because the calculation of
diffs between two files normally requires local access to both
files.
A technical report describing the rsync algorithm is included with
this package.
USAGE
-----
Basically you use rsync just like rcp, but rsync has many additional options.
Here is a brief description of available options:
-v, --verbose increase verbosity
-c, --checksum always checksum
-a, --archive archive mode (same as -rlptDog)
-r, --recursive recurse into directories
-R, --relative use relative path names
-b, --backup make backups (default ~ extension)
-u, --update update only (don't overwrite newer files)
-l, --links preserve soft links
-H, --hard-links preserve hard links
-p, --perms preserve permissions
-o, --owner preserve owner (root only)
-g, --group preserve group
-D, --devices preserve devices (root only)
-t, --times preserve times
-S, --sparse handle sparse files efficiently
-n, --dry-run show what would have been transferred
-x, --one-file-system don't cross filesystem boundaries
-B, --block-size SIZE checksum blocking size
-e, --rsh COMMAND specify rsh replacement
--rsync-path PATH specify path to rsync on the remote machine
-C, --cvs-exclude auto ignore files in the same way CVS does
--delete delete files that don't exist on the sending side
-I, --ignore-times don't exclude files that match length and time
-z, --compress compress file data
--exclude FILE exclude file FILE
--exclude-from FILE exclude files listed in FILE
--suffix SUFFIX override backup suffix
--version print version number
SETUP
-----
Rsync uses rsh or ssh for communication. It does not need to be setuid
and requires no special privilages for installation. It does not
require a inetd entry or a daemon. You must, however, have a working
rsh or ssh system. Using ssh is recommended for its security
features.
To install rsync, first run the "configure" script. This will create a
Makefile and config.h appropriate for your system. Then type
"make".
Once built put a copy of rsync in your search path on the local and
remote systems (or use "make install"). That's it!
MAILING LIST
------------
There is a mailing list for the discussion of rsync and its
applications. It is open to anyone to join. I will announce new
versions on this list.
To join the mailing list send mail to listproc@samba.anu.edu.au with
no subject and a body of "subscribe rsync Your Name".
To send mail to everyone on the list send it to rsync@samba.anu.edu.au
BUG REPORTS
-----------
If you have web access then please look at
http://samba.anu.edu.au/cgi-bin/rsync
This will give you access to the bug tracking system used by the
developers of rsync and will allow you to look at other bug reports or
submit a new bug report.
If you don't have web access then mail bug reports to
rsync-bugs@samba.anu.edu.au or (if you think it will be of interest to
lots of people) send it to rsync@samba.anu.edu.au
COPYRIGHT
---------
Rsync was written by Andrew Tridgell and Paul Mackerras, and is
available under the GPL.
Andrew.Tridgell@anu.edu.au
paulus@cs.anu.edu.au
AVAILABILITY
------------
The main ftp site for rsync is ftp://samba.anu.edu.au/pub/rsync
Mirrors are available at:
ftp://sunsite.auc.dk/pub/unix/rsync
ftp://ftp.sunet.se/pub/unix/admin/rsync
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