Here’s a command that will check the root / folder recursively for files greater than or equal to 1GB and sort the list.
cd / ; du -h | grep '^[0-9]\+\.\?[0-9]\?G' 2>/dev/null | sort -nrk 1
Thanks to Phil from WiredTree for sharing that info, I’m just putting it down here so I can remember it in future ๐