DF(1) MachTen Reference Manual DF(1)

NAME
df - display free disk space

SYNOPSIS
df [-in] [-t type] [file | filesystem ...]

DESCRIPTION
Df displays statistics about the amount of free disk space on the speci-
fied filesystem or on the filesystem of which file is a part. Values are
displayed in 512-byte blocks. If neither a file or a filesystem operand
is specified, statistics for all mounted filesystems are displayed (sub-
ject to the -t option below).

The following options are available:

-i Include statistics on the number of free inodes.

-n Print out the previously obtained statistics from the filesys-
tems. This option should be used if it is possible that one or
more filesystems are in a state such that they will not be able
to provide statistics without a long delay. When this option is
specified, df will not request new statistics from the filesys-
tems, but will respond with the possibly stale statistics that
were previously obtained.

-t Only print out statistics for filesystems of the specified types.
The recognized types are: ufs, nfs, mfs, lfs, msdos, fdesc, por-
tal, kernfs, procfs, afs and isofs. along with the aggregates:
all (the default), local (ufs, mfs, lfs, msdos, isofs), and misc
(fdesc, portal, kernfs, procfs). The string ‘‘no’’ may be
prepending to a type to get its complement (e.g. ‘‘nonfs’’ to get
non-NFS filesystems). The first -t option overrides the default,
additional such options will add to (or subtract from) the cur-
rent set of types; e.g. either ‘‘df -t ufs -t lfs’’ or ‘‘df -t
local -t nomfs’’ will display statistics for UFS and LFS filesys-
tems.

ENVIRONMENTAL VARIABLES
BLOCKSIZE If the environmental variable BLOCKSIZE is set, the block
counts will be displayed in units of that size block.

BUGS
The -n and -t flags are ignored if a file or filesystem is specified.

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

HISTORY
A df command appeared in Version 6 AT&T UNIX.

4th Berkeley Distribution January 13, 1994 1