du(1B)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | ENVIRONMENT VARIABLES | ATTRIBUTES | SEE ALSO | NOTES

NAME

du- display the number of disk blocks used per directory or file

SYNOPSIS

/usr/ucb/du
/usr/ucb/du [-a] [-s] [filename]

DESCRIPTION

The du utility 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.

OPTIONS

The following options are supported:

-a

Generate an entry for each file.

-s

Only display the grand total for each of the specified filenames.

Entries are generated only for each directory in the absence of options.

EXAMPLES

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Example 1 Using du in a directory




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:

example% pwd /usr/ralph/misc example% 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 . example%

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ENVIRONMENT VARIABLES

If any of the LC_* variables ( LC_CTYPE, LC_MESSAGES, LC_TIME, LC_COLLATE, LC_NUMERIC, and LC_MONETARY ) (see environ(5)) are not set in the environment, the operational behavior of du for each corresponding locale category is determined by the value of the LANG environment variable. If LC_ALL is set, its contents are used to override both the LANG and the other LC_* variables. If none of the above variables is set in the environment, the "C" (U.S. style) locale determines how du behaves.

LC_CTYPE

Determines how du handles characters. When LC_CTYPE is set to a valid value, du can display and handle text and filenames containing valid characters for that locale. du can display and handle Extended Unix Code (EUC) characters where any individual character can be 1, 2, or 3 bytes wide. du can also handle EUC characters of 1, 2, or more column widths. In the "C" locale, only characters from ISO 8859-1 are valid.

LC_MESSAGES

Determines how diagnostic and informative messages are presented. This includes the language and style of the messages, and the correct form of affirmative and negative responses. In the "C" locale, the messages are presented in the default form found in the program itself (in most cases, U.S. English).

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWscpu

SEE ALSO

pwd(1), df(1M), quot(1M), attributes(5), environ(5)

NOTES

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.

SunOS 5.8  Last Revised 14 Sep 1992

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | ENVIRONMENT VARIABLES | ATTRIBUTES | SEE ALSO | NOTES