rsync Command

If you ever want to sync files/directories between two different servers - you might've already encountered rsync command. rsync is way more efficient that just copying files, since it copies only those files which have been modified. In case internet connectivity is lost in midst of rsync, the next time it runs rsync knows exactly from where to start off - which is really great.

-r	copy all the directories & sub-directories recursively from source to destination folder
-a	archive. recurses, copies symlinks, preserves permissions, modification times, groups, owners and other metadata
--dry-run	to NOT sync files, but only to see what all files/directories will be synced. May be to get an idea of what all will we be syncing. Pair with verbose (-v)
-P	show progress