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29 .\" @(#)df.1 8.3 (Berkeley) 5/8/95
37 .Nd display free disk space
41 .Op Fl b | g | H | h | k | m | P
45 .Op Ar file | filesystem ...
50 displays statistics about the amount of free disk space on the specified
52 or on the file system of which
55 By default block counts are displayed with an assumed block size of
57 If neither a file or a file system operand is specified,
58 statistics for all mounted file systems are displayed
63 The following options are available:
64 .Bl -tag -width indent
66 Show all mount points, including those that were mounted with the
69 This is implied for file systems specified on the command line.
71 Explicitly use 512 byte blocks, overriding any
73 specification from the environment.
74 This is the same as the
79 option overrides this option.
81 Display a grand total.
83 Use 1073741824 byte (1 Gibibyte) blocks rather than the default.
86 specification from the environment.
90 Use unit suffixes: Byte, Kibibyte, Mebibyte, Gibibyte, Tebibyte and
91 Pebibyte (based on powers of 1024) in order to reduce the number of
92 digits to four or fewer.
96 Use unit suffixes: Byte, Kilobyte, Megabyte,
97 Gigabyte, Terabyte and Petabyte (based on powers of 1000) in order to
99 digits to four or fewer.
101 Include statistics on the number of free and used inodes.
102 In conjunction with the
106 options, the number of inodes is scaled by powers of 1000.
108 Use 1024 byte (1 Kibibyte) blocks rather than the default.
113 specification from the environment.
115 Only display information about locally-mounted file systems.
117 Use 1048576 byte (1 Mebibyte) blocks rather than the default.
120 specification from the environment.
122 Print out the previously obtained statistics from the file systems.
123 This option should be used if it is possible that one or more
124 file systems are in a state such that they will not be able to provide
125 statistics without a long delay.
126 When this option is specified,
128 will not request new statistics from the file systems, but will respond
129 with the possibly stale statistics that were previously obtained.
131 Explicitly use 512 byte blocks, overriding any
133 specification from the environment.
134 This is the same as the
139 option overrides this option.
141 Only print out statistics for file systems of the specified types.
142 More than one type may be specified in a comma separated list.
143 The list of file system types can be prefixed with
145 to specify the file system types for which action should
151 .Bd -literal -offset indent
155 lists all file systems except those of type
161 command can be used to find out the types of file systems
162 that are available on the system.
164 Include file system type.
166 (Comma) Print sizes grouped and separated by thousands using the
167 non-monetary separator returned by
169 typically a comma or period.
170 If no locale is set, or the locale does not have a non-monetary separator, this
171 option has no effect.
174 .Bl -tag -width BLOCKSIZE
176 Specifies the units in which to report block counts.
179 which allows units of bytes or numbers scaled with the letters
181 (for multiples of 1024 bytes),
183 (for multiples of 1048576 bytes) or
186 The allowed range is 512 bytes to 1 GB.
187 If the value is outside, it will be set to the appropriate limit.
199 .Xr xo_parse_args 3 ,
206 With the exception of most options,
211 which defines only the
224 flag is ignored if a file or file system is specified.
226 point is not accessible by the user, it is possible that the file system
227 information could be stale.
233 options are identical.
234 The former comes from the BSD tradition, and the latter is required