rsync sync files folders

[dev]

rsync

https://linux.die.net/man/1/rsync
Lear Linux TV - How to Use the rsync Command to Transfer Files
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rsync -avz ./src /dest	-v verbose, -z compress -a == -rlptgoD -r, --recursive -l, --links # copy symlinks as links -p, --perms # preserve permissions -t, --times # preserve times -g, --group # preserve group -o, --owner # preserve owner -D # same as --devices --specials
rsync -rv user@192.168.0.111:/home/user_name/scripts .	download from remote server to current folder, -r recursive,-v verbose,
rsync --dry-run -avz ./src /dest	dry run
rsync -rv user@192.168.0.111:/home/user_name/scripts /home/john/	download from remote server to current folder, -r recursive,-v verbose,
rsync -r --delete ./src /dest	sync recursively folders, and deletes from destination files which are not in source folder