Manual page for DU(1V)
du - display the number of disk blocks used per directory or file
SYNOPSIS
du
[
-s
]
[
-a
]
[
filename
...
]
SYSTEM V SYNOPSIS
/usr/5bin/du
[
-s
]
[
-a
]
[
-r
]
[
filename
...
]
AVAILABILITY
The System V version of this command is available with the
System V
software installation option. Refer to
[a manual with the abbreviation INSTALL]
for information on how to install optional software.
DESCRIPTION
du
gives the number of kilobytes contained in all files and, recursively,
directories within each specified directory or file
filename.
If
filename
is missing,
`.'
(the current directory) is used.
A file which has multiple links to it is only counted once.
SYSTEM V DESCRIPTION
The System V version of
du
gives the number of 512-byte blocks rather than the number of kilobytes.
OPTIONS
- -s
-
Only display the grand total for each of the specified
filenames.
- -a
-
Generate an entry for each file.
Entries are generated only for each directory in the absence of options.
SYSTEM V OPTIONS
- -r
-
The System V version of
du
is normally silent about directories that cannot be read,
files that cannot be opened, etc.
The
-r
option will cause
du
to generate messages in such instances.
EXAMPLE
Here is an example of using
du
in a directory. We used the
pwd.1
command to identify the directory, then used
du
to show
the usage of all the subdirectories in that directory. The grand total
for the directory is the last entry in the display:
-
% pwd
/usr/ralph/misc
% du
5 ./jokes
33 ./squash
44 ./tech.papers/lpr.document
217 ./tech.papers/new.manager
401 ./tech.papers
144 ./memos
80 ./letters
388 ./window
93 ./messages
15 ./useful.news
1211 .
%
SEE ALSO
df.1v
pwd.1
quot.8
BUGS
Filename arguments that are not directory names
are ignored, unless you use
-a .
If there are too many distinct linked files,
du
will count the excess files more than once.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
