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How much free space is left? Who took it? These two issues have to be faced constantly, especially file server administrators. If on the Windows platform, in a graphical environment, it's not difficult to find out, then the console of server versions of Linux can confuse many. However, do not be afraid, it's quite easy to get interesting information in the Linux environment.

As practice showed, this issue is relevant not only for novice administrators. Indeed, it is not enough just to find out the size of a file or folder, but you need to quickly and efficiently find out exactly who has taken up disk space and what. But first things first.