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【整理】rsync复制时可以用–info=progress2显示整体的进度以及参数的含义

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折腾:
【已解决】Mac中mv移动文件的逻辑和如何实现中断后继续即断点续传
期间,已经参考:
https://unix.stackexchange.com/questions/39813/best-way-to-continue-stopped-move-mv-by-merging-directories
而直到了:
rsync时,想要查看到整体的进度,可以通过:
–info=progress2
但是这个参数的具体含义是什么,需要去研究清楚。
即用之前,还是先去搞清楚rsync更多的参数和用法
➜  ~ rsync --help
rsync  version 2.6.9  protocol version 29
Copyright (C) 1996-2006 by Andrew Tridgell, Wayne Davison, and others.
<
http://rsync.samba.org/
>
Capabilities: 64-bit files, socketpairs, hard links, symlinks, batchfiles,
              inplace, IPv6, 64-bit system inums, 64-bit internal inums

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]... [[email protected]]HOST:DEST
  or   rsync [OPTION]... SRC [SRC]... [[email protected]]HOST::DEST
  or   rsync [OPTION]... SRC [SRC]... rsync://[[email protected]]HOST[:PORT]/DEST
  or   rsync [OPTION]... [[email protected]]HOST:SRC [DEST]
  or   rsync [OPTION]... [[email protected]]HOST::SRC [DEST]
  or   rsync [OPTION]... rsync://[[email protected]]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; same as -rlptgoD (no -H)
     --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
 -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
     --executability         preserve the file's executability
     --chmod=CHMOD           affect file and/or directory permissions
 -o, --owner                 preserve owner (super-user only)
 -g, --group                 preserve group
     --devices               preserve device files (super-user only)
     --specials              preserve special files
 -D                          same as --devices --specials
 -t, --times                 preserve times
 -O, --omit-dir-times        omit directories when preserving times
     --super                 receiver attempts super-user activities
 -S, --sparse                handle sparse files efficiently
 -n, --dry-run               show what would have been transferred
 -W, --whole-file            copy files whole (without rsync 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 (default)
     --delete-during         receiver deletes during transfer, not before
     --delete-after          receiver deletes after transfer, not before
     --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=TIME          set I/O 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
 -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
 -0, --from0                 all *-from/filter files are delimited by 0s
     --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
 -8, --8-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 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
 -E, --extended-attributes   copy extended attributes
     --cache                 disable fcntl(F_NOCACHE)
 -4, --ipv4                  prefer IPv4
 -6, --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(1) and rsyncd.conf(5) man pages for full documentation.
See 
http://rsync.samba.org/
 for updates, bug reports, and answers
其中:
  • -a, –archive               archive mode; same as -rlptgoD (no -H)
    • 此处完全忽略不考虑文件的各种属性,比如时间等等,所以可以不用-a
  • -n, –dry-run               show what would have been transferred
    • 暂时也不用
  • –remove-source-files   sender removes synchronized files (non-dirs)
    • 此处为了安全,暂时还是不用这个 删除源文件 的选项了
    • 等同步完成后,再去手动删除源文件就好
  • –info=progress2
    • 没找到这个选项啊
rsync –info
Understanding the output of –info=progress2 from rsync – Unix & Linux Stack Exchange
Homepage V. 5.1.5 – rsync –info option
3.1.0版本后,才有 –info
而此处Mac中的rsync是:
rsync  version 2.6.9  protocol version 29
所以要去mac中升级rsync:
【已解决】Mac中通过brew升级rsync
看了看新版本的help中,果然有info参数:
➜  output rsync --help
rsync  version 3.1.3  protocol version 31

     --info=FLAGS            fine-grained informational verbosity
不过没有找到progress2
mac rsync progress2
rsync progress2
sync – rsync –info=progress2 percent complete of copying a large directory is non-uniform? – Ask Ubuntu
rsync’s new progress feature – txt
https://askubuntu.com/questions/1057742/rsync-info-progress2-percent-complete-of-copying-a-large-directory-is-non-unif
没找到解释,发现是:
Homepage V. 5.1.5 – rsync –info option
解释了参数含义:
rsync
https://download.samba.org/pub/rsync/rsync.html
“–info=FLAGS
This option lets you have fine-grained control over the information output you want to see. An individual flag name may be followed by a level number, with 0 meaning to silence that output, 1 being the default output level, and higher numbers increasing the output of that flag (for those that support higher levels). Use –info=help to see all the available flag names, what they output, and what flag names are added for each increase in the verbose level. Some examples:
    rsync -a –info=progress2 src/ dest/
    rsync -avv –info=stats2,misc1,flist0 src/ dest/
Note that –info=name’s output is affected by the –out-format and –itemize-changes (-i) options. See those options for more information on what is output and when.
This option was added to 3.1.0, so an older rsync on the server side might reject your attempts at fine-grained control (if one or more flags needed to be send to the server and the server was too old to understand them). See also the “max verbosity” caveat above when dealing with a daemon.”
【总结】
rsync中,想要显示进度的话:
  • 对于每个文件,其进度显示,可以用 –progress
  • 但是对于整体的进度,之前是不支持的
    • 新版本3.1.0之后支持了,参数是:–info=progress2
    • –info:用于显示(更加详细的)信息(实现更细粒度的控制)
      • 后面的值的格式是:参数名+数字
    • progress2:
      • progress:表示显示进度方面的信息
      • 2:表示显示整体的进度
        • 0:表示silence -》不显示进度
        • 1:表示默认default输出的信息
        • 2:表示更高一级的显示
          • 此处指的是就是 全局的,整体的,进度的信息显示
而–info其他还支持哪些参数,可以通过:
rsync –info=help
而看到:
➜  output rsync --info=help
Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.

BACKUP     Mention files backed up
COPY       Mention files copied locally on the receiving side
DEL        Mention deletions on the receiving side
FLIST      Mention file-list receiving/sending (levels 1-2)
MISC       Mention miscellaneous information (levels 1-2)
MOUNT      Mention mounts that were found or skipped
NAME       Mention 1) updated file/dir names, 2) unchanged names
PROGRESS   Mention 1) per-file progress or 2) total transfer progress
REMOVE     Mention files removed on the sending side
SKIP       Mention files that are skipped due to options used
STATS      Mention statistics at end of run (levels 1-3)
SYMSAFE    Mention symlinks that are unsafe

ALL        Set all --info options (e.g. all4)
NONE       Silence all --info options (same as all0)
HELP       Output this help message

Options added for each increase in verbose level:
1) COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE
2) BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP
对于–info=progress2的输出的信息的含义,可参考:
Understanding the output of –info=progress2 from rsync – Unix & Linux Stack Exchange

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