du(1)								       du(1)








 NAME
      du - summarize disk usage


 SYNOPSIS
      du [-a|-s] [-brx] [-t type] [name ...]


 DESCRIPTION
      The du command gives the number of 512-byte blocks allocated for all
      files and (recursively) directories within each directory and file
      specified by the name operands.  The block count includes the indirect
      blocks of the file.  A file with two or more links is counted only
      once.  If name is missing, the current working directory is used.


      By default, du generates an entry only for the name operands and each
      directory contained within those hierarchies.


    Options
      The du command recognizes the following options:


	   -a		  Print entries for each file encountered in the
			  directory hierarchies in addition to the normal
			  output.


	   -b		  For each name operand that is a directory for
			  which file system swap has been enabled, print the
			  number of blocks the swap system is currently
			  using.


	   -r		  Print messages about directories that cannot be
			  read, files that cannot be accessed, etc.  du is
			  normally silent about such conditions.


	   -s		  Print only the grand total of disk usage for each
			  of the specified name operands.


	   -x		  Restrict reporting to only those files that have
			  the same device as the file specified by the name
			  operand.  Disk usage is normally reported for the
			  entire directory hierarchy below each of the given
			  name operands.


	   -t type	  Restrict reporting to file systems of the
			  specified type.  (Example values for type are hfs,
			  cdfs, nfs, etc.) Multiple -t type options can be
			  specified.  Disk usage is normally reported for
			  the entire directory hierarchy below each of the
			  given name operands.


 EXAMPLES
      Display disk usage for the current working directory and all
      directories below it, generating error messages for unreadable






 Hewlett-Packard Company	    - 1 -    HP-UX Release 10.20:  July 1996












 du(1)								       du(1)








      directories:


	   du -r


      Display disk usage for the entire file system except for any cdfs or
      nfs mounted file systems:


	   du -t hfs /


      Display disk usage for files on the root volume (/) only.	 No usage
      statistics are collected for any other mounted file systems:


	   du -x /


 WARNINGS
      Block counts are incorrect for files that contain holes.


 SEE ALSO
      df(1M), bdf(1M), quot(1M).


 STANDARDS CONFORMANCE
      du: SVID2, SVID3, XPG2, XPG3, XPG4
































































 Hewlett-Packard Company	    - 2 -    HP-UX Release 10.20:  July 1996