47 df 和 du

df 用来显示当前的系统磁盘情况。

root@ubuntu:~# df -ah
df: ‘/mnt/hgfs’: Protocol error
Filesystem      Size  Used Avail Use% Mounted on
sysfs              0     0     0    - /sys
proc               0     0     0    - /proc
udev            970M  4.0K  970M   1% /dev
devpts             0     0     0    - /dev/pts
tmpfs           196M  1.5M  195M   1% /run
/dev/sda1        18G  3.8G   13G  23% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none               0     0     0    - /sys/fs/fuse/connections
none               0     0     0    - /sys/kernel/debug
none               0     0     0    - /sys/kernel/security
none            5.0M     0  5.0M   0% /run/lock
none            980M  144K  980M   1% /run/shm
none            100M   36K  100M   1% /run/user
none               0     0     0    - /sys/fs/pstore
systemd            0     0     0    - /sys/fs/cgroup/systemd
vmware-vmblock     0     0     0    - /run/vmblock-fuse
gvfsd-fuse      0.0K  0.0K  0.0K    - /run/user/112/gvfs

du 命令显示大小

root@ubuntu:~# du -ah
4.0K    ./cats.txt
4.0K    ./herpets.txt
0   ./nohup.out
8.0K    ./.viminfo
4.0K    ./pets.txt
4.0K    ./.profile
4.0K    ./.selected_editor
4.0K    ./.vim/.netrwhist
8.0K    ./.vim
4.0K    ./html.txt
12K ./.bash_history
0   ./1n/2.txt
4.0K    ./1n/2/3/4/5
8.0K    ./1n/2/3/4
12K ./1n/2/3
16K ./1n/2
0   ./1n/1.txt
20K ./1n
4.0K    ./.bashrc
4.0K    ./pet.txt
0   ./1/2.txt
4.0K    ./1/2/3/4/5
8.0K    ./1/2/3/4
12K ./1/2/3
16K ./1/2
0   ./1/1.txt
20K ./1
4.0K    ./web.txt
4.0K    ./my.txt
1.1M    ./1.txt
1.2M    .

查看分区挂载

root@ubuntu:~# df -h
df: ‘/mnt/hgfs’: Protocol error
Filesystem      Size  Used Avail Use% Mounted on
udev            970M  4.0K  970M   1% /dev
tmpfs           196M  1.5M  195M   1% /run
/dev/sda1        18G  3.8G   13G  23% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none            5.0M     0  5.0M   0% /run/lock
none            980M  144K  980M   1% /run/shm
none            100M   36K  100M   1% /run/user