System Administration Guide, Volume 2

Displaying Blocks and Files Used

Use the df command and its options to report the number of free disk blocks and files. For more information, see df(1M).

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.

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

In the following example, all the file systems listed are locally mounted except for /usr/dist, which is mounted remotely from the system venus.

$ df
/                  (/dev/dsk/c0t0d0s0 ):  287530 blocks    92028 files
/usr               (/dev/dsk/c0t0d0s6 ): 1020214 blocks   268550 files
/proc              (/proc             ):       0 blocks      878 files
/dev/fd            (fd                ):       0 blocks        0 files
/etc/mnttab        (mnttab            ):       0 blocks        0 files
/var/run           (swap              ):  396016 blocks     9375 files
/tmp               (swap              ):  396016 blocks     9375 files
/opt               (/dev/dsk/c0t0d0s5 ):  381552 blocks    96649 files
/export/home       (/dev/dsk/c0t0d0s7 ):  434364 blocks   108220 files
/usr/dist          (venus:/usr/dist   ):14750510 blocks  2130134 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/c0t0d0s0     192807   49042  124485    29%    /
/dev/dsk/c0t0d0s6    1190551  680444  450580    61%    /usr
/proc                      0       0       0     0%    /proc
fd                         0       0       0     0%    /dev/fd
mnttab                     0       0       0     0%    /etc/mnttab
swap                  198056       0  198056     0%    /var/run
swap                  198064       8  198056     1%    /tmp
/dev/dsk/c0t0d0s5     192807    2031  171496     2%    /opt
/dev/dsk/c0t0d0s7     217191       9  195463     1%    /export/home
venus:/usr/dist     20612581 13237326 6963005   66%    /usr/dist

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/c0t0d0s0 ):  287530 blocks    92028 files
/usr               (/dev/dsk/c0t0d0s6 ): 1020214 blocks   268550 files
/opt               (/dev/dsk/c0t0d0s5 ):  381552 blocks    96649 files
/export/home       (/dev/dsk/c0t0d0s7 ):  434364 blocks   108220 files

Note -

Although /proc and /tmp are local file systems, they are not UFS file systems (/proc is a PROCFS file system, /var/run and /tmp are TMPFS file systems, and /etc/mnttab is a MNTFS 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/c0t0d0s0 ):   287530 blocks    92028 files
                                  total:   385614 blocks    96832 files
/usr               (/dev/dsk/c0t0d0s6 ):  1020214 blocks   268550 files
                                  total:  2381102 blocks   300288 files
/proc              (/proc             ):        0 blocks      879 files
                                  total:        0 blocks      924 files
/dev/fd            (fd                ):        0 blocks        0 files
                                  total:        0 blocks       72 files
/etc/mnttab        (mnttab            ):        0 blocks        0 files
                                  total:        0 blocks        1 files
/var/run           (swap              ):   396112 blocks     9375 files
                                  total:   396112 blocks     9395 files
/tmp               (swap              ):   396112 blocks     9375 files
                                  total:   396128 blocks     9395 files
/opt               (/dev/dsk/c0t0d0s5 ):   381552 blocks    96649 files
                                  total:   385614 blocks    96832 files
/export/home       (/dev/dsk/c0t0d0s7 ):   434364 blocks   108220 files
                                  total:   434382 blocks   108224 files
/usr/dist          (venus:/usr/dist   ): 14750510 blocks  2130134 files
                                  total: 41225162 blocks  2482176 files