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NAME
df - display free disk space
SYNOPSIS
df [-ikln] [-t type] [file | file_system ...]
DESCRIPTION
df displays statistics about the amount of free disk space on the speci-
fied 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).
Note that the printed count of available blocks takes minfree into ac-
count, and thus will be negative when the number of free blocks on the
filesystem is less than minfree.
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 sys-
tems. 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, df will not request new statistics from the file sys-
tems, 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 filesys-
tems 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 is-
sued and no information is given on that file system.
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