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32 .\" @(#)du.1 8.2 (Berkeley) 4/1/94
33 .\" $FreeBSD: src/usr.bin/du/du.1,v 1.25 2002/12/12 17:26:00 ru Exp $
40 .Nd display disk usage statistics
45 .Op Fl a | s | d Ar depth
53 utility displays the file system block usage for each file argument
54 and for each directory in the file hierarchy rooted in each directory
56 If no file is specified, the block usage of the hierarchy rooted in
57 the current directory is displayed.
60 flag is specified, the number of 1024-byte
61 blocks used by the file is displayed, otherwise
63 is used to determine the preferred block size.
64 Partial numbers of blocks are rounded up.
66 The options are as follows:
67 .Bl -tag -width indent
69 Symbolic links on the command line are followed, symbolic links in file
70 hierarchies are not followed.
72 Symbolic links on the command line and in file hierarchies are followed.
74 Ignore files and directories matching the specified
77 No symbolic links are followed.
80 Display an entry for each file in a file hierarchy.
82 "Human-readable" output. Use unit suffixes: Byte, Kilobyte, Megabyte,
83 Gigabyte, Terabyte and Petabyte
85 Generate messages about directories that cannot be read, files
86 that cannot be opened, and so on. This is the default case.
87 This option exists solely for conformance with
90 Display an entry for each specified file.
94 Display an entry for all files and directories
98 Display a grand total.
100 Display block counts in 1024-byte (1-Kbyte) blocks.
102 File system mount points are not traversed.
107 utility counts the storage used by symbolic links and not the files they
117 options are specified, storage used by any symbolic links which are
118 followed is not counted or displayed.
120 Files having multiple hard links are counted (and displayed) a single
125 .Bl -tag -width BLOCKSIZE
127 If the environment variable
131 option is not specified, the block counts will be displayed in units of that
137 option is not specified, the block counts will be displayed in 512-byte blocks.