|DF(1)||General Commands Manual||DF(1)|
df — display free
df 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, all
sizes are reported in 512-byte block counts. If neither a file or a
file_system operand is specified, statistics for all
mounted file systems are displayed (subject to the
Note that the printed count of available blocks takes minfree into account, and thus will be negative when the number of free blocks on the filesystem is less than minfree.
The following options are available:
-Poptions, and it is modelled after the Solaris
-goption. This option will override the
-moptions, as well as any setting of
-goption causes the numbers to be reported in gigabytes (1024*1024*1024 bytes).
-koption causes the numbers to be reported in kilobytes (1024 bytes).
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.
-moption causes the numbers to be reported in megabytes (1024*1024 bytes).
dfwill not request new statistics from the file systems, but will respond with the possibly stale statistics that were previously obtained.
If both the
-k option are specified, the output will be
preceded by the following header line, formatted to match the data
"Filesystem 1024-blocks Used Available Capacity Mounted on\n"
-P option is specified without
-k options, the output will be preceded by
the following header line, formatted to match the data following it:
"Filesystem <blksize>-blocks Used Available Capacity Mounted on\n"
The header line is followed by data formatted as follows:
"%s %d %d %d %d%% %s\n", <file system name>, <total space>, <space used>, <space free>, <percentage used>, <file system root>
Note that the
-i option may not be
BLOCKSIZEis set, and the
-moptions are not specified, the block counts will be displayed in units of that size block.
df utility appeared in
Version 6 AT&T UNIX.
|March 4, 2008||NetBSD-7.0.1|