du

Disk usage: estimate and summarize file and directory space usage. More information: https://www.gnu.org/software/coreutils/du.

du -b|k|m path/to/directory

du -h path/to/directory

du -sh path/to/directory

du -ah path/to/directory

du -h --max-depth=N path/to/directory

du -ch */*.jpg

du --all --human-readable --threshold 1G|1024M|1048576K .[^.]* *