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32 .\" @(#)du.1 8.2 (Berkeley) 4/1/94
40 .Nd display disk usage statistics
46 .Op Fl a | s | d Ar depth
54 utility displays the file system block usage for each file argument
55 and for each directory in the file hierarchy rooted in each directory
57 If no file is specified, the block usage of the hierarchy rooted in
58 the current directory is displayed.
60 The options are as follows:
61 .Bl -tag -width indent
63 Display the apparent size instead of the disk usage.
64 This can be helpful when operating on compressed volumes or sparse files.
66 Calculate block counts in
69 This is different from the
75 and gives an estimate of how much space the examined file hierarchy would
76 require on a filesystem with the given
82 is rounded up to the next multiple of 512.
84 Symbolic links on the command line are followed, symbolic links in file
85 hierarchies are not followed.
87 Ignore files and directories matching the specified
90 Symbolic links on the command line and in file hierarchies are followed.
92 No symbolic links are followed.
95 Display an entry for each file in a file hierarchy.
97 Display a grand total.
99 Display an entry for all files and directories
103 Display block counts in 1073741824-byte (1 GiB) blocks.
107 Use unit suffixes: Byte, Kilobyte, Megabyte,
108 Gigabyte, Terabyte and Petabyte.
110 Display block counts in 1024-byte (1 kiB) blocks.
112 If a file has multiple hard links, count its size multiple times.
113 The default behavior of
115 is to count files with multiple hard links only once.
118 option is specified, the hard link checks are disabled, and these files
119 are counted (and displayed) as many times as they are found.
121 Display block counts in 1048576-byte (1 MiB) blocks.
123 Ignore files and directories with user
129 Generate messages about directories that cannot be read, files
130 that cannot be opened, and so on.
131 This is the default case.
132 This option exists solely for conformance with
135 Display an entry for each specified file.
138 .It Fl t Ar threshold
139 Display only entries for which size exceeds
143 is negative, display only entries for which size is less than the absolute
147 File system mount points are not traversed.
152 utility counts the storage used by symbolic links and not the files they
162 option is specified, storage used by any symbolic links which are
163 followed is not counted (or displayed).
169 options override each other and the command's actions are determined
170 by the last one specified.
176 options all override each other; the last one specified determines
177 the block counts used.
179 .Bl -tag -width BLOCKSIZE
181 If the environment variable
187 options are not specified, the block counts will be displayed in units of
195 options are not specified, the block counts will be displayed in 512-byte