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UNIX in a Nutshell: System V Edition

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UNIX Commands
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df



df

 [

options

] [

name

]

Report the number of free disk blocks and inodes available on all mounted file systems or on the given name . (Unmounted file systems are checked with -F .) name can be a device name (e.g., /dev/dsk/0s9 ), the directory name of a mounting point (e.g., /usr ), a directory name, or a remote resource name (e.g., an RFS/NFS resource). Besides the options listed, there are additional options specific to different file system types or df modules.

Options

-b

Print only the number of free kilobytes.

-e

Print only the number of free files.

-f

Report free blocks but not free inodes (SVR3 only).

-F type

Report on an unmounted file system specified by type . Available types can be seen in the file /etc/vfstab .

-g

Print the whole statvfs structure (overriding other print options).

-k

Print allocation in kilobytes (typically used without other options).

-l

Report only on local file systems.

-n

Print only the file system type name; with no other arguments, -n lists the types for all mounted file systems.

-o suboptions

Supply a comma-separated list of type -specific suboptions .

-t

Report total allocated space as well as free space.

-V

Echo command line but do not execute command.


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