看範例結果 root@pve-omv5-245:/var/lib# du -h -d 1 | sort -k 2
185M .
124M ./apt
8.0K ./chrony
4.0K ./collectd
184K ./containerd
32K ./cron-apt
20K ./dahdi
4.0K ./dbus
8.0K ./dhcp
244K ./docker
32M ./dpkg
12K ./grub
44K ./initramfs-tools
8.0K ./logrotate
4.0K ./misc
12K ./monit
16K ./nfs
40K ./nginx
1.4M ./openmediavault
28K ./pam
7.1M ./pcp
60K ./php