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DU(1)									 DU(1)

NAME
       du - disk usage

SYNOPSIS
       du [ -aefhnqstu ] [ -b size ] [ -p SI-prefix ] [ file ...  ]

DESCRIPTION
       Du  gives  the number of Kbytes allocated to data blocks of named files
       and, recursively, of files in named directories.	 It assumes storage is
       quantized in units of 1024 bytes (Kbytes) by default.  Other values can
       be set by the -b option; size is the number of bytes,  optionally  suf‐
       fixed  k	 to  specify  multiplication by 1024.  If file is missing, the
       current directory is used.  The count  for  a  directory	 includes  the
       counts of the contained files and directories.

       The  -a	option	prints the number of blocks for every file in a direc‐
       tory.  Normally counts are printed only for contained directories.

       The -f option suppresses the printing of warning messages.

       The -n option prints the size in bytes and the name of  each  file;  it
       sets -a.

       The -t option prints, in the format of du -n, the modified time of each
       file rather than the size.  If the options -tu are specified  then  the
       accessed time is printed.

       The -q option prints, in the format of du -n, the QID path of each file
       rather than the size.

       The -s option causes du to descend the  hierarchy  as  always,  but  to
       print only a summary line for each file.

       The  -e option causes du to print values (sizes, times or QID paths) in
       `scientific notation' via print(2)'s %g.

       The -h option causes du to print values (sizes, times or QID paths)  in
       scientific  notation,  scaled to less than 1024, and with a suitable SI
       prefix (e.g., for binary gigabytes).

       The -p option causes du to print values (sizes, times or QID paths)  in
       units  of  SI-prefix.   Case  is ignored when looking up SI-prefix.  An
       empty SI-prefix corresponds to a scale factor of 1 (e.g.,  print	 sizes
       in bytes).

EXAMPLES
       Print the size of in fractional binary gigabytes:

	      % du -sepg /tmp
	      .6960154	/tmp

       Print the size of in bytes and in scientific notation:

	      % du -sep '' /tmp
	      7.473408e+08   /tmp

SOURCE
       /sys/src/cmd/du.c

									 DU(1)

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