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32 .\" @(#)du.1 8.2 (Berkeley) 4/1/94
33 .\" $FreeBSD: src/usr.bin/du/du.1,v 1.15.2.9 2003/02/24 22:37:41 trhodes Exp $
34 .\" $DragonFly: src/usr.bin/du/du.1,v 1.2 2003/06/17 04:29:26 dillon Exp $
41 .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.
61 flag is specified, the number of 1024-byte
62 blocks used by the file is displayed, otherwise
64 is used to determine the preferred block size.
65 Partial numbers of blocks are rounded up.
67 The options are as follows:
68 .Bl -tag -width indent
70 Symbolic links on the command line are followed, symbolic links in file
71 hierarchies are not followed.
73 Symbolic links on the command line and in file hierarchies are followed.
75 Ignore files and directories matching the specified
78 No symbolic links are followed.
81 Display an entry for each file in a file hierarchy.
83 "Human-readable" output. Use unit suffixes: Byte, Kilobyte, Megabyte,
84 Gigabyte, Terabyte and Petabyte
86 Generate messages about directories that cannot be read, files
87 that cannot be opened, and so on. This is the default case.
88 This option exists solely for conformance with
91 Display an entry for each specified file.
95 Display an entry for all files and directories
99 Display a grand total.
101 Display block counts in 1024-byte (1-Kbyte) blocks.
103 File system mount points are not traversed.
108 utility counts the storage used by symbolic links and not the files they
118 options are specified, storage used by any symbolic links which are
119 followed is not counted or displayed.
121 Files having multiple hard links are counted (and displayed) a single
126 .Bl -tag -width BLOCKSIZE
128 If the environment variable
132 option is not specified, the block counts will be displayed in units of that
138 option is not specified, the block counts will be displayed in 512-byte blocks.