rsync

Usage:

# general usage:
rsync -avhuzP /path/to/src_folder/   username@serverIp:/home/username/path/to/dest_folder/

# other usages:
alias rsyncBackupCompareAttr='rsync -avhuz --progress --delete --log-file=rsyncBackupLog.txt'
alias rsyncBackupIgnoreAttr='rsync -avhuz --no-perms --no-owner --no-group --progress --delete --log-file=rsyncBackupLog-$(date -d "today" +"%Y%m%d_%H%M%S").log.txt'
alias rsyncBackupProgressIgnoreAttr='rsync -ahuz -e 'ssh -p <remote_port>' --exclude "@eaDir" --exclude ".SynologyWorkingDirectory" --exclude ".stfolder" --info=progress2 --no-perms --no-owner --no-group --delete --log-file=rsyncBackupLog-$(date -d "today" +"%Y%m%d_%H%M%S").log.txt'

options:

• -a: archive mode is -rlptgoD (no -A,-X,-U,-N,-H).
• -v: == --verbose.
• -h: human-readable.
• -u: transfer only if src has (newer timestamp) or (equal timestamp & different size).
• -z: == --compress during transfer.
• -P: == --partial --progress.
• --partial: keep partially transfered files in dest (will overwrite/delete.&.re-transfer by default).
• -e: for params of ssh, e.g. tcp port number.
• --info=progress2:
  • shows:
    • 1 overall transferred size;
    • 2 overall size-wise progress (depends on size of “detected” files, increases during transfer as detecting in progress);
    • 3 speed;
    • 4 remaining time which varies with speed & detected files (switch to elapsed time for 1 sec. when xfr file counter increases);
    • 5.1 xfr: file counter;
    • 5.2 ir-chk: nr. of files currently in queue to be checked / nr. of files recursively detected (change to “to-chk” when file detection is done).
    • note: this options is since v3.1.0
    • warn: both -v and -p overwrite this option
    • ref: stackOverflow, stackExchange

“–info=progress2” e.g.:

OBS:
rsync folderA folderB will cp folderA into,under folderB.
rsync folderA/ folderB/ will cp folderA’s content into folderB.
Thus, /s after both folderX are mandatory.
Becareful with -u: it will ignore the dest file with newer timestamp.