List linked files

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LEARN ABOUT NETBSD

du

DU(1)							    BSD General Commands Manual 						     DU(1)

NAME

     du -- display disk usage statistics

SYNOPSIS

     du [-H | -L | -P] [-a | -d depth | -s] [-cghkmnrx] [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 direc-
     tory argument.  If no file is specified, the block usage of the hierarchy rooted in the current directory is displayed.

     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.

     -c      Display the grand total after all the arguments have been processed.

     -d      Display an entry files and directories depth directories deep.

     -g      If the -g flag is specified, the number displayed is the number of gigabyte (1024*1024*1024 bytes) blocks.

     -h      If the -h flag is specified, the numbers will be displayed in "human-readable" format.  Use unit suffixes: B (Byte), K (Kilobyte), M
	     (Megabyte), G (Gigabyte), T (Terabyte) and P (Petabyte).

     -k      By default, du displays the number of blocks as returned by the stat(2) system call, i.e. 512-byte blocks.  If the -k flag is speci-
	     fied, the number displayed is the number of kilobyte (1024 bytes) blocks.	Partial numbers of blocks are rounded up.

     -m      If the -m flag is specified, the number displayed is the number of megabyte (1024*1024 bytes) blocks.

     -n      Ignore files and directories with user "nodump" flag (UF_NODUMP) set.

     -r      Generate warning messages about directories that cannot be read.  This is the default behaviour.

     -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 over-
     ride 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

     BLOCKSIZE	If the environment variable BLOCKSIZE is set, and the -g, -h, -k, and -m options are not specified, the block counts will be dis-
		played in units of that size block.

SEE ALSO

     df(1), chflags(2), fts(3), getbsize(3), symlink(7), quot(8)

HISTORY

     A du command appeared in Version 6 AT&T UNIX.

BSD
								September 24, 2006							       BSD

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