|DF(1)||General Commands Manual||DF(1)|
file | file_system] ...
dfutility 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
-toptions, below). 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.
-k. 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.
dfutility exits 0 on success, and >0 if an error occurs. /usr file system using kilobyte block sizes:
$ df -kP /usr
dfutility is compliant with the IEEE Std 1003.1-2008 (“POSIX.1”) specification. The flags [
BLOCKSIZEenvironment variable, are extensions to that specification. This implementation provides the traditional BSD
-tbehaviour, which differs from the X/Open System Interfaces option specification.
dfutility appeared in Version 1 AT&T UNIX.
|August 10, 2016||OpenBSD-current|