[CentOS] df to get total disk usage on all filesystems?

[Lunix1618]

Stephen Harris wrote:
> On Thu, Aug 14, 2008 at 01:12:58AM -0700, MHR wrote:
>   
>> On Wed, Aug 13, 2008 at 8:56 PM, Lunix1618 <lunix1618 at gmail.com> wrote:
>>     
>>> [root at centos-svr ~]# df -kPl
>>> Filesystem         1024-blocks      Used Available Capacity Mounted on
>>> /dev/mapper/VolGroup00-LogVol00 274405432  18584656 241656808       8% /
>>> /dev/sda2               101105     19096     76788      20% /boot
>>> tmpfs                  1682508         0   1682508       0% /dev/shm
>>>
>>> and with the command of Stephen :
>>> [root at centos-svr ~]# df -Pkl | awk '/^\/dev\// { avail += $3/1024 } END { printf("%d Mb used\n",avail)} '
>>> 18173 Mb used
Oppps, sorry my fault... 18,173 MB equal 18 GB
sorry again.