DU
Section: User Commands (1)
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BSD mandoc
NAME
du
- Display disk usage statistics
SYNOPSIS
du
[-a | -s
]
[-x
]
[file ...
]
DESCRIPTION
The
du
utility displays the file system block usage for each file argument
and for each directory in the file hierarchy rooted in each directory
argument.
If no file is specified, the block usage of the hierarchy rooted in
the current directory is displayed.
The number of blocks are in the same units as that returned by the
stat(2)
system call, i.e. 512-byte blocks.
Partial numbers of blocks are rounded up.
The options are as follows:
- -a
-
Display an entry for each file in the file hierarchy.
- -s
-
Display only the grand total for the specified files.
- -x
-
Filesystem mount points are not traversed.
If
file
is a symbolic link referencing an existing file, the file referenced
by the link is reported on instead of the link itself.
Files having multiple hard links are counted (and displayed) a single
time per
du
execution.
ENVIRONMENTAL VARIABLES
- BLOCKSIZE
-
If the environmental variable
BLOCKSIZE
is set, the block counts will be displayed in units of that size block.
SEE ALSO
df(1),
quot(8)
HISTORY
A
du
command appeared in
AT&T System
v6 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ENVIRONMENTAL VARIABLES
-
- SEE ALSO
-
- HISTORY
-
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Time: 06:34:19 GMT, May 19, 2025