|DF(1)||General Commands Manual||DF(1)|
df — display free
df utility 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. By default, values are displayed as
512-byte block counts. If no operands are specified, statistics for all
mounted file systems are displayed (subject to the
The options are as follows:
-koption causes the numbers to be reported in kilobyte counts.
MNT_LOCALflag 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.
dfwill not request new statistics from the file systems, but will respond with the possibly stale statistics that were previously obtained.
It is not an error to specify more than one of the mutually
Where more than one of these options is specified, the last option given
overrides the others.
BLOCKSIZEis set, and the
-koptions are not specified, the block counts will be displayed in units of that size block.
df utility exits 0 on success,
and >0 if an error occurs.
Output, in a strict format suitable for portable scripts, disk space statistics for the /usr file system using kilobyte block sizes:
$ df -kP /usr
df utility is compliant with the
IEEE Std 1003.1-2008 (“POSIX.1”)
The flags [
-hiln], as well as the
BLOCKSIZE environment variable, are extensions to
This implementation provides the traditional
-t behaviour, which
differs from the X/Open System Interfaces option specification.
df utility appeared in
Version 1 AT&T UNIX.
|August 10, 2016||OpenBSD-6.2|