Disk Usage for Directories in Linux

The Linux command

du -h --block-size=MiB --max-depth=3 | sort -rn

shows the disk usage for each directory upto a depth of 3.
MiB is required to avoid showing all those long bytes numbers.
-h is for human readable format.
sort -rn sorts on the reverse numeric order, i.e. the most disk usage first

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