DF

Section: User Commands (1)
Index Return to Main Contents

BSD mandoc
BSD 4  

NAME

df - display free disk space  

SYNOPSIS

[-ikln ] [-t type ] [file | file_system ... ]  

DESCRIPTION

displays statistics about the amount of free disk space on the specified file_system or on the file system of which file is a part. Values are displayed in 512-byte per block block counts. If neither a file or a file_system operand is specified, statistics for all mounted file systems are displayed (subject to the -l and -t options below).

The following options are available:

-i
Include statistics on the number of free inodes.
-k
By default, all sizes are reported in 512-byte block counts. The -k option causes the numbers to be reported in kilobyte counts.
-l
Display statistics only about mounted file systems with the MNT_LOCAL flag set. If a non-local file system is given as an argument, a warning is issued and no information is given on that file system.
-n
Print out the previously obtained statistics from the file systems. This option should be used if it is possible that one or more file systems are in a state such that they will not be able to provide statistics without a long delay. When this option is specified, will not request new statistics from the file systems, but will respond with the possibly stale statistics that were previously obtained.
-t type
Is used to indicate the actions should only be taken on filesystems of the specified type. More than one type may be specified in a comma separated list. The list of filesystem types can be prefixed with ``no'' to specify the filesystem types for which action should not be taken. If a file system is given on the command line that is not of the specified type, a warning is issued and no information is given on that file system.

 

ENVIRONMENT VARIABLES

BLOCKSIZE
If the environment variable BLOCKSIZE is set, and the -k option is not specified, the block counts will be displayed in units of that size block.

 

SEE ALSO

quota(1), statfs(2), fstatfs(2), getfsstat(2), getmntinfo(3), fstab(5), mount(8), quot(8)  

HISTORY

A utility appeared in AT&T System v6 .


 

Index

NAME
SYNOPSIS
DESCRIPTION
ENVIRONMENT VARIABLES
SEE ALSO
HISTORY

This document was created by man2html, using the manual pages.
Time: 04:29:52 GMT, April 24, 2025