List linked files

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LEARN ABOUT OPENDARWIN

du

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

NAME

     du -- display disk usage statistics

SYNOPSIS

     du [-H | -L | -P] [-I mask] [-a | -s | -d depth] [-c] [-h | -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 direc-
     tory argument.  If no file is specified, the block usage of the hierarchy rooted in the current directory is displayed.  If the -k flag is
     specified, the number of 1024-byte blocks used by the file is displayed, otherwise getbsize(3) is used to determine the preferred block size.
     Partial numbers of blocks are rounded up.

     The options are as follows:

     -H      Symbolic links on the command line are followed, symbolic links in file hierarchies are not followed.

     -L      Symbolic links on the command line and in file hierarchies are followed.

     -I mask
	     Ignore files and directories matching the specified mask.

     -P      No symbolic links are followed.  This is the default.

     -a      Display an entry for each file in a file hierarchy.

     -h      "Human-readable" output.  Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte

     -r      Generate messages about directories that cannot be read, files that cannot be opened, and so on.  This is the default case.  This
	     option exists solely for conformance with X/Open Portability Guide Issue 4 (``XPG4'').

     -s      Display an entry for each specified file.	(Equivalent to -d 0)

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

     -c      Display a grand total.

     -k      Display block counts in 1024-byte (1-Kbyte) blocks.

     -x      File system mount points are not traversed.

     The du utility 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.

     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 -k option is not specified, the block counts will be displayed in units of
		that size block.  If BLOCKSIZE is not set, and the -k option is not specified, the block counts will be displayed in 512-byte
		blocks.

SEE ALSO

     df(1), fts(3), symlink(7), quot(8)

HISTORY

     A du command appeared in Version 1 AT&T UNIX.

BSD
								   April 1, 1994							       BSD

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