rsync基本原理
rsync命令精华总结
Usage: rsync [OPTION]... SRC [SRC]... DEST
or rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST
or rsync [OPTION]... [USER@]HOST:SRC [DEST]
-e, --rsh=COMMAND specify the remote shell to use
--rsync-path=PATH specify path to rsync on the remote machine
-a, --archive archive mode, equivalent to -rlptgoD
-r, --recursive recurse into directories
-l, --links copy symlinks as symlinks
-p, --perms preserve permissions
-t, --times preserve times
-g, --group preserve group
-o, --owner preserve owner (root only)
-D, --devices preserve devices (root only)
-c, --checksum always checksum
--exclude-from=FILE exclude patterns listed in FILE
--include-from=FILE don't exclude patterns listed in FILE
--include=PATTERN don't exclude files matching PATTERN
--exclude=PATTERN exclude files matching PATTERN
-v, --verbose increase verbosity
-n, --dry-run show what would have been transferred
--delete delete files that don't exist on the sending side (!!!danger!!!)
--delete-excluded also delete excluded files on the receiving side
--delete-after delete after transferring, not before
-q, --quiet decrease verbosity
-R, --relative use relative path names
-b, --backup make backups (default ~ suffix)
--backup-dir make backups into this directory
--suffix=SUFFIX define backup suffix
-u, --update update only (don't overwrite newer files)
-L, --copy-links copy the referent of symlinks
--copy-unsafe-links copy links outside the source tree
--safe-links ignore links outside the destination tree
-H, --hard-links preserve hard links
-S, --sparse handle sparse files efficiently
-W, --whole-file copy whole files, no incremental checks
--no-whole-file turn off --whole-file
-x, --one-file-system don't cross filesystem boundaries
-B, --block-size=SIZE checksum blocking size (default 700)
-C, --cvs-exclude auto ignore files in the same way CVS does
--existing only update files that already exist
--ignore-existing ignore files that already exist on the receiving side
--ignore-errors delete even if there are IO errors
--max-delete=NUM don't delete more than NUM files
--partial keep partially transferred files
--force force deletion of directories even if not empty
--numeric-ids don't map uid/gid values by user/group name
--timeout=TIME set IO timeout in seconds
-I, --ignore-times don't exclude files that match length and time
--size-only only use file size when determining if a file should be transferred
--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
--version print version number
--daemon run as a rsync daemon
--no-detach do not detach from the parent
--address=ADDRESS bind to the specified address
--config=FILE specify alternate rsyncd.conf file
--port=PORT specify alternate rsyncd port number
--blocking-io use blocking IO for the remote shell
--no-blocking-io turn off --blocking-io
--stats give some file transfer stats
--progress show progress during transfer
--log-format=FORMAT log file transfers using specified format
--password-file=FILE get password from FILE
--bwlimit=KBPS limit I/O bandwidth, KBytes per second
--read-batch=PREFIX read batch fileset starting with PREFIX
--write-batch=PREFIX write batch fileset starting with PREFIX
-h, --help show this help screen
实际使用rysnc的几个典型实例：
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备份远程数据到本地
rsync -e "ssh -l huangwei 192.168.1.162" -a huangwei@192.168.1.162:/home/huangwei/rsyncbak/ ~/rsyncbak