df -- linux命令--硬盘使用情况

[user@hose ~]$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      19172036   4931020  13251424  28% /
/dev/sda1               101086     20049     75818  21% /boot
tmpfs                   449852         0    449852   0% /dev/shm
none                    449764       104    449660   1% /var/lib/xenstored
[user@host ~]$ df -m
Filesystem           1M-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                         18723      4816     12941  28% /
/dev/sda1                   99        20        75  21% /boot
tmpfs                      440         0       440   0% /dev/shm
none                       440         1       440   1% /var/lib/xenstored
[user@host ~]$