Linux显示指定区块大小为1048576字节 ~~~ youhaidong@youhaidong-ThinkPad-Edge-E545:~$ df -m 文件系统 1M-blocks 已用 可用 已用% 挂载点 /dev/sda8 19097 7283 10822 41% / none 1 0 1 0% /sys/fs/cgroup udev 1505 1 1505 1% /dev tmpfs 304 2 302 1% /run none 5 0 5 0% /run/lock none 1516 1 1516 1% /run/shm none 100 1 100 1% /run/user /dev/sda10 47932 2497 42979 6% /home /dev/sda9 945 64 817 8% /boot youhaidong@youhaidong-ThinkPad-Edge-E545:~$ df --megabytes df: warning: long option '--megabytes' is deprecated and will soon be removed 文件系统 1M-blocks 已用 可用 已用% 挂载点 /dev/sda8 19097 7283 10822 41% / none 1 0 1 0% /sys/fs/cgroup udev 1505 1 1505 1% /dev tmpfs 304 2 302 1% /run none 5 0 5 0% /run/lock none 1516 1 1516 1% /run/shm none 100 1 100 1% /run/user /dev/sda10 47932 2497 42979 6% /home /dev/sda9 945 64 817 8% /boot youhaidong@youhaidong-ThinkPad-Edge-E545:~$ ~~~