mailto(rsync-bugs@samba.org)
-manpage(rsync)(1)(25 Jan 2002)()()
+manpage(rsync)(1)(26 Jan 2003)()()
manpagename(rsync)(faster, flexible replacement for rcp)
manpagesynopsis()
exists.
The rsync remote-update protocol allows rsync to transfer just the
-differences between two sets of files across the network link, using
+differences between two sets of files across the network connection, using
an efficient checksum-search algorithm described in the technical
report that accompanies this package.
manpagesection(RUNNING AN RSYNC SERVER)
-An rsync server is configured using a config file which by default is
-called /etc/rsyncd.conf. Please see the rsyncd.conf(5) man page for more
-information.
+An rsync server is configured using a config file. Please see the
+rsyncd.conf(5) man page for more information. By default the configuration
+file is called /etc/rsyncd.conf, unless rsync is running over a remote
+shell program and is not running as root; in that case, the default name
+is rsyncd.conf in the current directory on the remote computer
+(typically $HOME).
manpagesection(RUNNING AN RSYNC SERVER OVER A REMOTE SHELL PROGRAM)
NOTE: rsync's argument parsing expects the trailing ".", so make sure
that it's there. If you want to use a rsyncd.conf(5)-style
-configuration file other than /etc/rsyncd.conf, you can added a
---config-file option to the em(command):
+configuration file other than the default, you can added a
+--config option to the em(command):
-quote(rsync --server --daemon --config-file=em(file) .)
+quote(rsync --server --daemon --config=em(file) .)
manpagesection(EXAMPLES)
quote(rsync -Cavz . arvidsjaur:backup)
-each night over a PPP link to a duplicate directory on my machine
+each night over a PPP connection to a duplicate directory on my machine
"arvidsjaur".
To synchronize my samba source trees I use the following Makefile
sync: get put)
this allows me to sync with a CVS directory at the other end of the
-link. I then do cvs operations on the remote machine, which saves a
+connection. I then do cvs operations on the remote machine, which saves a
lot of time as the remote cvs protocol isn't very efficient.
I mirror a directory between my "old" and "new" ftp sites with the
-v, --verbose increase verbosity
-q, --quiet decrease verbosity
-c, --checksum always checksum
- -a, --archive archive mode
+ -a, --archive archive mode, equivalent to -rlptgoD
-r, --recursive recurse into directories
-R, --relative use relative path names
-b, --backup make backups (default ~ suffix)
--modify-window=NUM Timestamp window (seconds) for file match (default=0)
-T --temp-dir=DIR create temporary files in directory DIR
--compare-dest=DIR also compare destination files relative to DIR
+ --link-dest=DIR create hardlinks to DIR for unchanged files
-P equivalent to --partial --progress
-z, --compress compress file data
--exclude=PATTERN exclude files matching PATTERN
the timestamps as being equal if they are within the value of
modify_window. This is normally zero, but you may find it useful to
set this to a larger value in some situations. In particular, when
-transferring to/from FAT filesystems which cannot represent times with
-a 1 second resolution this option is useful.
+transferring to Windows FAT filesystems which cannot represent times
+with a 1 second resolution --modify-window=1 is useful.
dit(bf(-c, --checksum)) This forces the sender to checksum all files using
a 128-bit MD4 checksum before transfer. The checksum is then
option, but instead it adds all exclude patterns listed in the file
FILE to the exclude list. Blank lines in FILE and lines starting with
';' or '#' are ignored.
+If em(FILE) is bf(-) the list will be read from standard input.
+
dit(bf(--include=PATTERN)) This option tells rsync to not exclude the
specified pattern of filenames. This is useful as it allows you to
dit(bf(--include-from=FILE)) This specifies a list of include patterns
from a file.
+If em(FILE) is bf(-) the list will be read from standard input.
+
dit(bf(-C, --cvs-exclude)) This is a useful shorthand for excluding a
broad range of files that you often don't want to transfer between
The exclude list is initialized to:
-quote(RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS .make.state
+quote(RCS/ SCCS/ CVS/ .svn/ CVS.adm RCSLOG cvslog.* tags TAGS .make.state
.nse_depinfo *~ #* .#* ,* *.old *.bak *.BAK *.orig *.rej .del-*
*.a *.o *.obj *.so *.Z *.elc *.ln core)
.cvsignore file and matches one of the patterns listed therein. See
the bf(cvs(1)) manual for more information.
-dit(bf(--csum-length=LENGTH)) By default the primary checksum used in
-rsync is a very strong 16 byte MD4 checksum. In most cases you will
-find that a truncated version of this checksum is quite efficient, and
-this will decrease the size of the checksum data sent over the link,
-making things faster.
-
-You can choose the number of bytes in the truncated checksum using the
---csum-length option. Any value less than or equal to 16 is valid.
-
-Note that if you use this option then you run the risk of ending up
-with an incorrect target file. The risk with a value of 16 is
-microscopic and can be safely ignored (the universe will probably end
-before it fails) but with smaller values the risk is higher.
-
-Current versions of rsync actually use an adaptive algorithm for the
-checksum length by default, using a 16 byte file checksum to determine
-if a 2nd pass is required with a longer block checksum. Only use this
-option if you have read the source code and know what you are doing.
-
dit(bf(-T, --temp-dir=DIR)) This option instructs rsync to use DIR as a
scratch directory when creating temporary copies of the files
transferred on the receiving side. The default behavior is to create
dit(bf(--compare-dest=DIR)) This option instructs rsync to use DIR on
the destination machine as an additional directory to compare destination
-files against when doing transfers. This is useful for doing transfers to
-a new destination while leaving existing files intact, and then doing a
+files against when doing transfers if the files are missing in the
+destination directory. This is useful for doing transfers to a new
+destination while leaving existing files intact, and then doing a
flash-cutover when all files have been successfully transferred (for
example by moving directories around and removing the old directory,
-although this requires also doing the transfer with -I to avoid skipping
-files that haven't changed). This option increases the usefulness of
---partial because partially transferred files will remain in the new
-temporary destination until they have a chance to be completed. If DIR is
-a relative path, it is relative to the destination directory.
+although this skips files that haven't changed; see also --link-dest).
+This option increases the usefulness of --partial because partially
+transferred files will remain in the new temporary destination until they
+have a chance to be completed. If DIR is a relative path, it is relative
+to the destination directory.
+
+dit(bf(--link-dest=DIR)) This option behaves like bf(--compare-dest) but
+also will create hard links from em(DIR) to the destination directory for
+unchanged files. Files with changed ownership or permissions will not be
+linked.
dit(bf(-z, --compress)) With this option, rsync compresses any data from
the files that it sends to the destination machine. This
-option is useful on slow links. The compression method used is the
+option is useful on slow connections. The compression method used is the
same method that gzip uses.
Note this this option typically achieves better compression ratios
If standard input is a socket then rsync will assume that it is being
run via inetd, otherwise it will detach from the current terminal and
become a background daemon. The daemon will read the config file
-(/etc/rsyncd.conf) on each connect made by a client and respond to
+(rsyncd.conf) on each connect made by a client and respond to
requests accordingly. See the rsyncd.conf(5) man page for more
details.
in conjunction with the --config option.
dit(bf(--config=FILE)) This specifies an alternate config file than
-the default /etc/rsyncd.conf. This is only relevant when --daemon is
-specified.
+the default. This is only relevant when --daemon is specified.
+The default is /etc/rsyncd.conf unless the daemon is running over
+a remote shell program and the remote user is not root; in that case
+the default is rsyncd.conf in the current directory (typically $HOME).
dit(bf(--port=PORT)) This specifies an alternate TCP port number to use
rather than the default port 873.
manpagefiles()
-/etc/rsyncd.conf
+/etc/rsyncd.conf or rsyncd.conf
manpageseealso()
times are transferred as unix time_t values
+When transferring to FAT filesystmes rsync may resync
+unmodified files.
+See the comments on the --modify-window option.
+
file permissions, devices etc are transferred as native numerical
values
see also the comments on the --delete option
-Please report bugs! The rsync bug tracking system is online at
-url(http://rsync.samba.org/rsync/)(http://rsync.samba.org/rsync/)
-
-manpagesection(VERSION)
-This man page is current for version 2.0 of rsync
+Please report bugs! See the website at
+url(http://rsync.samba.org/)(http://rsync.samba.org/)
manpagesection(CREDITS)
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff