Disk Usage (du)

du -h --max-depth=1 2> nul

• -h - human readable size
• --max-depth=1 or -d 1 - only one level of subfolders
• 2>null - do not show erros like Permission denied

C:\>du -h --max-depth=5 2> nul | grep '\[0-9\]G'
C:\>du -h -d 5 2> nul | grep '\[0-9\]G'