linux command


Linux Command – rsync ใช้ในการ sync ข้อมูล file ระหว่าง server



rsync -t <file> <remote host>:<remote path>

$ rsync -t *.txt host:backup_txt/

ทำการคัดลอกและส่ง file.txt ทั้งหมด (*.txt) ไปยัง server host (host) ใน path (backup_txt) เฉพาะ file ที่มีการแก้ไข หรือ modification time เปลี่ยน (-t)



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

 Access via remote shell:
 Pull: rsync [OPTION...] [USER@]HOST:SRC... [DEST]
 Push: rsync [OPTION...] SRC... [USER@]HOST:DEST

 Access via rsync daemon:
 Pull: rsync [OPTION...] [USER@]HOST::SRC... [DEST]
 rsync [OPTION...] rsync://[USER@]HOST[:PORT]/SRC... [DEST]
 Push: rsync [OPTION...] SRC... [USER@]HOST::DEST
 rsync [OPTION...] SRC... rsync://[USER@]HOST[:PORT]/DEST

 Usages with just one SRC arg and no DEST arg will list the source files instead of copying.



เป็นคำสั่งที่ใช้ในการ sync ข้อมูล file ระหว่าง server



 -v, --verbose increase verbosity
 --info=FLAGS fine-grained informational verbosity
 --debug=FLAGS fine-grained debug verbosity
 --msgs2stderr special output handling for debugging
 -q, --quiet suppress non-error messages
 --no-motd suppress daemon-mode MOTD (see 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 backup suffix (default ~ w/o --backup-dir)
 -u, --update skip files that are newer on the receiver
 --inplace update destination files in-place
 --append append data onto shorter files
 --append-verify --append w/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 tree
 --munge-links munge symlinks to make them safer
 -k, --copy-dirlinks transform symlink to 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 executability
 --chmod=CHMOD affect file and/or directory permissions
 -A, --acls preserve ACLs (implies -p)
 -X, --xattrs preserve extended attributes
 -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 modification times
 -O, --omit-dir-times omit directories from --times
 -J, --omit-link-times omit symlinks from --times
 --super receiver attempts super-user activities
 --fake-super store/recover privileged attrs using xattrs
 -S, --sparse handle sparse files efficiently
 --preallocate allocate dest files before writing
 -n, --dry-run perform a trial run with no changes made
 -W, --whole-file copy files whole (w/o 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 remote machine
 --existing skip creating new files on receiver
 --ignore-existing skip updating files that exist on receiver
 --remove-source-files sender removes synchronized files (non-dir)
 --del an alias for --delete-during
 --delete delete extraneous files from dest dirs
 --delete-before receiver deletes before xfer, not during
 --delete-during receiver deletes during the transfer
 --delete-delay find deletions during, delete after
 --delete-after receiver deletes after transfer, not during
 --delete-excluded also delete excluded files from dest dirs
 --ignore-missing-args ignore missing source args without error
 --delete-missing-args delete missing source args from destination
 --ignore-errors delete even if there are I/O errors
 --force force deletion of dirs 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 end
 -m, --prune-empty-dirs prune empty directory chains from file-list
 --numeric-ids don't map uid/gid values by user/group name
 --usermap=STRING custom username mapping
 --groupmap=STRING custom groupname mapping
 --chown=USER:GROUP simple username/groupname mapping
 --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 size and 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 received 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 suffix in LIST
 -C, --cvs-exclude auto-ignore files in 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
 -s, --protect-args no space-splitting; wildcard chars only
 --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
 --outbuf=N|L|B set out buffering to None, Line, or Block
 --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
 -M, --remote-option=OPTION send OPTION to the remote side only
 --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=RATE limit socket I/O bandwidth
 --write-batch=FILE write a batched update to FILE
 --only-write-batch=FILE like --write-batch but w/o updating dest
 --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
 --checksum-seed=NUM set block/file checksum seed (advanced)
 -4, --ipv4 prefer IPv4
 -6, --ipv6 prefer IPv6
 --version print version number
 (-h) --help show this help (see below for -h comment)

 Rsync can also be run as a daemon, in which case the following options are accepted:

 --daemon run as an rsync daemon
 --address=ADDRESS bind to the specified address
 --bwlimit=RATE limit socket I/O bandwidth
 --config=FILE specify alternate rsyncd.conf file
 -M, --dparam=OVERRIDE override global daemon config parameter
 --no-detach do not detach from the parent
 --port=PORT listen on alternate port number
 --log-file=FILE override the "log file" setting
 --log-file-format=FMT override the "log format" setting
 --sockopts=OPTIONS specify custom TCP options
 -v, --verbose increase verbosity
 -4, --ipv4 prefer IPv4
 -6, --ipv6 prefer IPv6
 -h, --help show this help (if used after --daemon)






คำสั่ง Unix – Linux Command

Linux, Unix


Author: Suphakit Annoppornchai


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