[root@Centos epel]# rsync  --help

rsync  version 3.0.  protocol version

Copyright (C) - by Andrew Tridgell, Wayne Davison, and others.

Web site: http://rsync.samba.org/

Capabilities:

    -bit files, -bit inums, -bit timestamps, -bit long ints,

    socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace,

    append, ACLs, xattrs, iconv, symtimes

rsync comes with ABSOLUTELY NO WARRANTY.  This is free software, and you

are welcome to redistribute it under certain conditions.  See the GNU

General Public Licence for details.

rsync is a file transfer program capable of efficient remote update

via a fast differencing algorithm.

Usage: rsync [OPTION]... SRC [SRC]... DEST

  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST:DEST

  or   rsync [OPTION]... SRC [SRC]... [USER@]HOST::DEST

  or   rsync [OPTION]... SRC [SRC]... rsync://[USER@]HOST[:PORT]/DEST

  or   rsync [OPTION]... [USER@]HOST:SRC [DEST]

  or   rsync [OPTION]... [USER@]HOST::SRC [DEST]

  or   rsync [OPTION]... rsync://[USER@]HOST[:PORT]/SRC [DEST]

The ':' usages connect via remote shell, while '::' & 'rsync://' usages connect

to an rsync daemon, and require SRC or DEST to start with a module name.

Options

 -v, --verbose               increase verbosity

 -q, --quiet                 suppress non-error messages

     --no-motd               suppress daemon-mode MOTD (see manpage caveat)

 -c, --checksum              skip based on checksum, not mod-time & size

 -a, --archive               archive mode; equals -rlptgoD (no -H,-A,-X)

     --no-OPTION             turn off an implied OPTION (e.g. --no-D)

 -r, --recursive             recurse into directories

 -R, --relative              use relative path names

     --no-implied-dirs       don't send implied dirs with --relative

 -b, --backup                make backups (see --suffix & --backup-dir)

     --backup-dir=DIR        make backups into hierarchy based in DIR

     --suffix=SUFFIX         set backup suffix (default ~ w/o --backup-dir)

 -u, --update                skip files that are newer on the receiver

     --inplace               update destination files in-place (SEE MAN PAGE)

     --append                append data onto shorter files

     --append-verify         like --append, but with old data in file checksum

 -d, --dirs                  transfer directories without recursing

 -l, --links                 copy symlinks as symlinks

 -L, --copy-links            transform symlink into referent file/dir

     --copy-unsafe-links     only "unsafe" symlinks are transformed

     --safe-links            ignore symlinks that point outside the source tree

 -k, --copy-dirlinks         transform symlink to a dir into referent dir

 -K, --keep-dirlinks         treat symlinked dir on receiver as dir

 -H, --hard-links            preserve hard links

 -p, --perms                 preserve permissions

 -E, --executability         preserve the file's executability

     --chmod=CHMOD           affect file and/or directory permissions

 -A, --acls                  preserve ACLs (implies --perms)

 -X, --xattrs                preserve extended attributes

 -o, --owner                 preserve owner (super-user only)

 -g, --group                 preserve group

     --devices               preserve device files (super-user only)

     --copy-devices          copy device contents as regular file

     --specials              preserve special files

 -D                          same as --devices --specials

 -t, --times                 preserve modification times

 -O, --omit-dir-times        omit directories from --times

     --super                 receiver attempts super-user activities

     --fake-super            store/recover privileged attrs using xattrs

 -S, --sparse                handle sparse files efficiently

 -n, --dry-run               perform a trial run with no changes made

 -W, --whole-file            copy files whole (without delta-xfer algorithm)

 -x, --one-file-system       don't cross filesystem boundaries

 -B, --block-size=SIZE       force a fixed checksum block-size

 -e, --rsh=COMMAND           specify the remote shell to use

     --rsync-path=PROGRAM    specify the rsync to run on the remote machine

     --existing              skip creating new files on receiver

     --ignore-existing       skip updating files that already exist on receiver

     --remove-source-files   sender removes synchronized files (non-dirs)

     --del                   an alias for --delete-during

     --delete                delete extraneous files from destination dirs

     --delete-before         receiver deletes before transfer, not during

     --delete-during         receiver deletes during transfer (default)

     --delete-delay          find deletions during, delete after

     --delete-after          receiver deletes after transfer, not during

     --delete-excluded       also delete excluded files from destination dirs

     --ignore-errors         delete even if there are I/O errors

     --force                 force deletion of directories even if not empty

     --max-delete=NUM        don't delete more than NUM files

     --max-size=SIZE         don't transfer any file larger than SIZE

     --min-size=SIZE         don't transfer any file smaller than SIZE

     --partial               keep partially transferred files

     --partial-dir=DIR       put a partially transferred file into DIR

     --delay-updates         put all updated files into place at transfer's end

 -m, --prune-empty-dirs      prune empty directory chains from the file-list

     --numeric-ids           don't map uid/gid values by user/group name

     --timeout=SECONDS       set I/O timeout in seconds

     --contimeout=SECONDS    set daemon connection timeout in seconds

 -I, --ignore-times          don't skip files that match in size and mod-time

     --size-only             skip files that match in size

     --modify-window=NUM     compare mod-times with reduced accuracy

 -T, --temp-dir=DIR          create temporary files in directory DIR

 -y, --fuzzy                 find similar file for basis if no dest file

     --compare-dest=DIR      also compare destination files relative to DIR

     --copy-dest=DIR         ... and include copies of unchanged files

     --link-dest=DIR         hardlink to files in DIR when unchanged

 -z, --compress              compress file data during the transfer

     --compress-level=NUM    explicitly set compression level

     --skip-compress=LIST    skip compressing files with a suffix in LIST

 -C, --cvs-exclude           auto-ignore files the same way CVS does

 -f, --filter=RULE           add a file-filtering RULE

 -F                          same as --filter='dir-merge /.rsync-filter'

                             repeated: --filter='- .rsync-filter'

     --exclude=PATTERN       exclude files matching PATTERN

     --exclude-from=FILE     read exclude patterns from FILE

     --include=PATTERN       don't exclude files matching PATTERN

     --include-from=FILE     read include patterns from FILE

     --files-from=FILE       read list of source-file names from FILE

 -, --from0                 all *-from/filter files are delimited by 0s

 -s, --protect-args          no space-splitting; only wildcard special-chars

     --address=ADDRESS       bind address for outgoing socket to daemon

     --port=PORT             specify double-colon alternate port number

     --sockopts=OPTIONS      specify custom TCP options

     --blocking-io           use blocking I/O for the remote shell

     --stats                 give some file-transfer stats

 -, ---bit-output          leave high-bit chars unescaped in output

 -h, --human-readable        output numbers in a human-readable format

     --progress              show progress during transfer

 -P                          same as --partial --progress

 -i, --itemize-changes       output a change-summary for all updates

     --out-format=FORMAT     output updates using the specified FORMAT

     --log-file=FILE         log what we're doing to the specified FILE

     --log-file-format=FMT   log updates using the specified FMT

     --password-file=FILE    read daemon-access password from FILE

     --list-only             list the files instead of copying them

     --bwlimit=KBPS          limit I/O bandwidth; KBytes per second

     --write-batch=FILE      write a batched update to FILE

     --only-write-batch=FILE like --write-batch but w/o updating destination

     --read-batch=FILE       read a batched update from FILE

     --protocol=NUM          force an older protocol version to be used

     --iconv=CONVERT_SPEC    request charset conversion of filenames

 -, --ipv4                  prefer IPv4

 -, --ipv6                  prefer IPv6

     --version               print version number

(-h) --help                  show this help (-h works with no other options)

Use "rsync --daemon --help" to see the daemon-mode command-line options.

Please see the rsync() and rsyncd.conf() man pages for full documentation.

See http://rsync.samba.org/ for updates, bug reports, and answers

-v, --verbose # 详细的输出模式

-q, --quiet # 精简的显示

-c, --checksum # 跳过shecksum

-a, --archive # 归档模式,等同于 -rlptgoD(不含-H,-A,-X)

    --no-OPTION # 剔除掉隐含的选项 (例如: --no-D, 剔除掉-D参数)

-r, --recursive # 对目录以递归模式处理.

-R, --relative # 使用相对路径信息.

    --no-implied-dirs # 不发送隐含的dirs

-b, --backup # 创建备份,目的地相同的文件名时,将老的文件重命名.

    --backup-dir=DIR # 备份文件的目录

    --suffix=SUFFIX # 设置备份前缀

-u, --update # 更新操作,跳过所有已经存在于DST,并且文件时间晚于要备份的时候(不覆盖更新文件.)

    --inplace #

    --append #

    --append-verify #

-d, --dirs #

-l, --copy-links # 把link文档当link文件copy

-L, --copy-links # 转化link为所指向的文件

    --copy-unsafe-links # 仅仅转化"unsafe"link文件

    --safe-links # 忽略指向路径目录外的连接

-k, --copy-dirlinks  # 将dir link转化为指向的dir

-K, --keep-dirlinks # 将dir link 当dir对待

-H, --hard-links # 维持hard links

-p, --perms # 维持权限

-E, --executability # 保留可执行权限

     --chmod=CHMOD # 修改文件/目录权限

-A, --acls # 保护acl权限

-X, --xattrs # 保护额外的属性

-o, --owner # 保留属主

-g, --group # 保留属组

    --devices # 保留设备文件信息

    --copy-devices # copy匹配的设备包含的文件

    --specials # 保留指定的文件

-D # 等价于 --devices --specials

-t, --times # 保留Mtime              preserve modification times

-O, --omit-dir-times        omit directories from --times

    --super                 receiver attempts super-user activities

    --fake-super            store/recover privileged attrs using xattrs

-S, --sparse                handle sparse files efficiently

-n, --dry-run               perform a trial run with no changes made

-W, --whole-file            copy files whole (without delta-xfer algorithm)

-x, --one-file-system       don't cross filesystem boundaries

-B, --block-size=SIZE       force a fixed checksum block-size

-e, --rsh=COMMAND           specify the remote shell to use

    --rsync-path=PROGRAM    specify the rsync to run on the remote machine

    --existing              skip creating new files on receiver

    --ignore-existing       skip updating files that already exist on receiver

    --remove-source-files   sender removes synchronized files (non-dirs)

    --del                   an alias for --delete-during

    --delete                delete extraneous files from destination dirs

    --delete-before         receiver deletes before transfer, not during

    --delete-during         receiver deletes during transfer (default)

    --delete-delay          find deletions during, delete after

    --delete-after          receiver deletes after transfer, not during

    --delete-excluded       also delete excluded files from destination dirs

    --ignore-errors         delete even if there are I/O errors

    --force                 force deletion of directories even if not empty

    --max-delete=NUM        don't delete more than NUM files

    --max-size=SIZE         don't transfer any file larger than SIZE

    --min-size=SIZE         don't transfer any file smaller than SIZE

    --partial               keep partially transferred files

    --partial-dir=DIR       put a partially transferred file into DIR

    --delay-updates         put all updated files into place at transfer's end

-m, --prune-empty-dirs      prune empty directory chains from the file-list

     --numeric-ids           don't map uid/gid values by user/group name

     --timeout=SECONDS       set I/O timeout in seconds

     --contimeout=SECONDS    set daemon connection timeout in seconds

-I, --ignore-times          don't skip files that match in size and mod-time

     --size-only             skip files that match in size

     --modify-window=NUM     compare mod-times with reduced accuracy

-T, --temp-dir=DIR          create temporary files in directory DIR

-y, --fuzzy                 find similar file for basis if no dest file

     --compare-dest=DIR      also compare destination files relative to DIR

     --copy-dest=DIR         ... and include copies of unchanged files

     --link-dest=DIR         hardlink to files in DIR when unchanged

-z, --compress              compress file data during the transfer

     --compress-level=NUM    explicitly set compression level

     --skip-compress=LIST    skip compressing files with a suffix in LIST

-C, --cvs-exclude           auto-ignore files the same way CVS does

-f, --filter=RULE           add a file-filtering RULE

-F                          same as --filter='dir-merge /.rsync-filter'

                             repeated: --filter='- .rsync-filter'

     --exclude=PATTERN       exclude files matching PATTERN

     --exclude-from=FILE     read exclude patterns from FILE

     --include=PATTERN       don't exclude files matching PATTERN

     --include-from=FILE     read include patterns from FILE

     --files-from=FILE       read list of source-file names from FILE

 -, --from0                 all *-from/filter files are delimited by 0s

 -s, --protect-args          no space-splitting; only wildcard special-chars

     --address=ADDRESS       bind address for outgoing socket to daemon

     --port=PORT             specify double-colon alternate port number

     --sockopts=OPTIONS      specify custom TCP options

     --blocking-io           use blocking I/O for the remote shell

     --stats                 give some file-transfer stats

 -, ---bit-output          leave high-bit chars unescaped in output

 -h, --human-readable        output numbers in a human-readable format

     --progress              show progress during transfer

 -P                          same as --partial --progress

 -i, --itemize-changes       output a change-summary for all updates

     --out-format=FORMAT     output updates using the specified FORMAT

     --log-file=FILE         log what we're doing to the specified FILE

     --log-file-format=FMT   log updates using the specified FMT

     --password-file=FILE    read daemon-access password from FILE

     --list-only             list the files instead of copying them

     --bwlimit=KBPS          limit I/O bandwidth; KBytes per second

     --write-batch=FILE      write a batched update to FILE

     --only-write-batch=FILE like --write-batch but w/o updating destination

     --read-batch=FILE       read a batched update from FILE

     --protocol=NUM          force an older protocol version to be used

     --iconv=CONVERT_SPEC    request charset conversion of filenames

 -, --ipv4                  prefer IPv4

 -, --ipv6                  prefer IPv6

     --version               print version number

(-h) --help                  show this help (-h works with no other options)