how to see the exact size of a folder in linux code example

Example 1: check folder sizes linux

du -h --max-depth=1

Example 2: command to check size of folder in linux

du -lh --max-depth=1 --block-size=M | sort -nr

Example 3: show directory size linux

du -sh /home/george
2.1G    /home/george

Example 4: how to get the size of directory in linux

du -sh /var