Linux bash 常用命令語法整理

root@demo-77:/var/lib# du -h -d 1 | sort -h -r
91G     .
48G     ./docker
42G     ./kubelet
425M    ./etcd
208M    ./apt
32M     ./dpkg
6.7M    ./containerd
3.2M    ./command-not-found
940K    ./fwupd
608K    ./usbutils
560K    ./systemd
360K    ./cni
164K    ./snapd
116K    ./ucf

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