Of all the countless tools and utilities available in the Linux and UNIX world, few are as beloved as rsync. rsync is a utility that you can use to copy data from one place to another very easily, and there are many options available to allow you to be very specific on how you want the data transferred. Examples of its many use-cases include copying files while preserving permissions, copying files while backing up replaced files, and even setting up incremental backups. If you don't already know how to use rsync, you'll probably want to get lots of practice with it, as it's something you'll soon see will be indispensable during your career as a Linux administrator, and it is also something that the Linux community generally assumes you already know. rsync is not hard to learn. Most administrators can learn the basic usage in about an hour, but the countless options available will lead you to learn new tricks even years down the road.
Another aspect that makes...