linux 磁盘管理基本命令

[root@livedvd ~]# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/live-rw  5.4G  4.8G  617M  89% /
tmpfs                499M  228K  498M   1% /dev/shm
/dev/sr0             1.8G  1.8G     0 100% /mnt/live
varcacheyum          499M     0  499M   0% /var/cache/yum
/tmp                 499M   12K  499M   1% /tmp
vartmp               499M     0  499M   0% /var/tmp

[root@livedvd ~]# df -a
Filesystem          1K-blocks    Used Available Use% Mounted on
/dev/mapper/live-rw   5644224 4956028    630860  89% /
proc                        0       0         0    - /proc
sysfs                       0       0         0    - /sys
devpts                      0       0         0    - /dev/pts
tmpfs                  510172     228    509944   1% /dev/shm
none                        0       0         0    - /proc/sys/fs/binfmt_misc
/dev/sr0              1829954 1829954         0 100% /mnt/live
varcacheyum            510172       0    510172   0% /var/cache/yum
/tmp                   510172      12    510160   1% /tmp
vartmp                 510172       0    510172   0% /var/tmp

统计home文件夹的大小
[root@livedvd /]# du -s home/
1180    home/

统计home文件夹的大小  已MB单位进行统计
[root@livedvd /]# du -sm /home/
2       /home/