DU
Section: User Commands (1)
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BSD mandoc
NAME
du
- display disk usage statistics
SYNOPSIS
du
[-H | -L | -P
]
[-a | s | d depth
]
[-k
]
[-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.
If the
-k
flag is specified, the number displayed is the number of 1024-byte
blocks.
Partial numbers of blocks are rounded up.
The options are as follows:
- -H
-
Symbolic links on the command line are followed.
(Symbolic links encountered in the tree traversal are not followed.)
- -L
-
All symbolic links are followed.
- -P
-
No symbolic links are followed.
- -a
-
Display an entry for each file in the file hierarchy.
- -d depth
-
Displays all directories only
depth
directories deep.
- -k
-
Report in 1024-byte (1-Kbyte) blocks rather than the default. Note that
this overrides the
BLOCKSIZE
setting from the environment.
- -s
-
Display only the grand total for the specified files.
- -x
-
Filesystem mount points are not traversed.
Du counts the storage used by symbolic links and not the files they
reference unless the
-H
or
-L
option is specified.
If either the
-H
or
-L
options are specified, storage used by any symbolic links which are
followed is not counted or displayed.
The
-H
-L
and
-P
options override each other and the command's actions are determined
by the last one specified.
Files having multiple hard links are counted (and displayed) a single
time per
du
execution.
ENVIRONMENT VARIABLES
- BLOCKSIZE
-
If the environment variable
BLOCKSIZE
is set, and the
-k
option is not specified, the block counts will be displayed in units of that
size block.
SEE ALSO
df(1),
fts(3),
symlink(7),
quot(8)
HISTORY
A
du
command appeared in
AT&T System
v1 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ENVIRONMENT VARIABLES
-
- SEE ALSO
-
- HISTORY
-
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Time: 03:08:38 GMT, January 13, 2023