I've moved from shared hosting to a VPS and see in my HyperVM that 11 GB out of my allotted 20 GB of disk space is being used.
According to how big this files are on Windows before I upload, all of my files are taking up less than 100 MB of space.
I've got 11 websites running in 11 directories. What is the best command/way on Linux to show me exactly how much space each directory is taking up, e.g. like the TreeSize tool on windows?