Array
(
    [0] => Filesystem
    [1] => 
    [2] => 
    [3] => 
    [4] => 
    [5] => Type
    [6] => 
    [7] => Size
    [8] => 
    [9] => Used
    [10] => Avail
    [11] => Use%
    [12] => Mounted
    [13] => on
/dev/md4
    [14] => 
    [15] => 
    [16] => 
    [17] => 
    [18] => 
    [19] => 
    [20] => ext4
    [21] => 
    [22] => 1.8T
    [23] => 
    [24] => 
    [25] => 78G
    [26] => 
    [27] => 1.6T
    [28] => 
    [29] => 
    [30] => 5%
    [31] => /home


)
Document
        Total Disk Size 1.8T        Disk Used 78G        Disk Left 1.6T