If there is no VNC Server available to manage your server with GUI Facility, then terminal is the fastest way to solve it.
Command for showing directory sizes in Linux:
$user@machine /home/gibran>du -hThis will show you each subdirectory sizes in directory /home/gibran with human readable ( -h ) fiturs, something like this:
If you want to summarize your current active directory, here they are:
$user@machine /home/gibran> du -sh
This will show you summarize ( -S) all files and directory in /home/gibran, like this one:
15MB .in above examples, we can see that /home/gibran has 15MB totals directory and files.