System Administration Guide

How to Display Information About Blocks, Files, and Disk Space

Display information about how disk space is used by using the df command.

$ df [directory] [-F fstype] [-g] [-k] [-t]

`df`	With no options, lists all mounted file systems and their device names, the number of total 512-byte blocks used, and the number of files.
`directory`	Directory whose file system you want to check. The device name, blocks used, and number of files are displayed.
`-F` `fstype`	Displays a list of unmounted file systems, their device names, the number of 512-byte blocks used, and the number of files on file systems of type `fstype`.
`-g`	Displays the `statvfs` structure for all mounted file systems.
`-k`	Displays a list of file systems, kilobytes used, free kilobytes, percent capacity used, and mount points.
`-t`	Displays total blocks as well as blocks used for all mounted file systems.

Note -

For remotely mounted file systems, "-1 files"is displayed instead of the number of files.

Examples--Displaying Information About Blocks, Files, and Disk Space

In the following example, the file systems root (/), /usr, /proc, and /tmp are on the local disk. The other file systems are mounted by NFS and do not use local disk resources.

$ df
/               (/dev/dsk/c0t3d0s0 ):   30374 blocks    14002 files
/usr            (/dev/dsk/c0t3d0s6 ):   40714 blocks    80522 files
/proc           (/proc             ):       0 blocks      429 files
/dev/fd         (fd                ):       0 blocks        0 files
/export/home    (/dev/dsk/c0t3d0s7 ):   10712 blocks    10564 files
/export/root    (/dev/dsk/c0t3d0s3 ):   69180 blocks    18812 files
/export/swap    (/dev/dsk/c0t3d0s4 ):   61804 blocks    29563 files
/opt            (/dev/dsk/c0t3d0s5 ):   15722 blocks    13147 files
/tmp            (swap              ):   57104 blocks     5653 files
/usr/local      (mars:/usr/local   ):  435040 blocks       -1 files
$

In the following example, the file system, total Kbytes, used Kbytes, available Kbytes, percent of capacity used, and mount point are displayed.

$ df -k
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/dsk/c0t3d0s0      30991   15812   12089    57%    /
/dev/dsk/c0t3d0s6     185303  164946    1827    99%    /usr
/proc                      0       0       0     0%    /proc
fd                         0       0       0     0%    /dev/fd
/dev/dsk/c0t3d0s7      19095   13739    3456    80%    /export/home
/dev/dsk/c0t3d0s3      34599       9   31140     1%    /export/root
/dev/dsk/c0t3d0s4      55511   24609   25352    50%    /export/swap
/dev/dsk/c0t3d0s5      23063   15202    5561    74%    /opt
swap                   29564     976   28588     4%    /tmp
mars:/usr/local      5353093 5135591  163972    97%    /usr/local
$

The following example shows information about the same system as the previous example, but only UFS file system information is displayed.

$ df -F ufs
/             (/dev/dsk/c0t3d0s0 ):   30358 blocks    14002 files
/usr          (/dev/dsk/c0t3d0s6 ):   40714 blocks    80522 files
/export/home  (/dev/dsk/c0t3d0s7 ):   10712 blocks    10564 files
/export/root  (/dev/dsk/c0t3d0s3 ):   69180 blocks    18812 files
/export/swap  (/dev/dsk/c0t3d0s4 ):   61804 blocks    29563 files
/opt          (/dev/dsk/c0t3d0s5 ):   15722 blocks    13147 files
$

Note -

Although /proc and /tmp are local file systems, they are not UFS file systems (/proc is a PROCFS file system, and /tmp is a TMPFS file system).

The following example shows a list of all mounted file systems, device names, total 512-byte blocks used, and number of files. The second line of each two-line entry displays the total number of blocks and files allocated for the file system.

$ df -t
/             (/dev/dsk/c0t3d0s0 ):    30358 blocks    14002 files
                             total:    61982 blocks    16128 files
/usr          (/dev/dsk/c0t3d0s6 ):    40714 blocks    80522 files
                             total:   370606 blocks    94080 files
/proc         (/proc             ):        0 blocks      429 files
                             total:        0 blocks      492 files
/dev/fd       (fd                ):        0 blocks        0 files
                             total:        0 blocks       26 files
/export/home  (/dev/dsk/c0t3d0s7 ):    10712 blocks    10564 files
                             total:    38190 blocks    10752 files
/export/root  (/dev/dsk/c0t3d0s3 ):    69180 blocks    18812 files
                             total:    69198 blocks    18816 files
/export/swap  (/dev/dsk/c0t3d0s4 ):    61804 blocks    29563 files
                             total:   111022 blocks    29568 files
/opt          (/dev/dsk/c0t3d0s5 ):    15722 blocks    13147 files
                             total:    46126 blocks    13440 files
/tmp          (swap              ):    57144 blocks     5653 files
                             total:    59096 blocks     5768 files
/usr/local    (mars:/usr/local   ):   435008 blocks       -1 files
                             total: 10706186 blocks       -1 files
$