.bp 
.au "TSC \- intro.xx"

.c
The Dutree Program

.2
\f(BIdutree\fB takes the output of \f(BIdu\fB and arranges
it in a nicely indented format.

.2
At each level, the directories are sorted according to amount
of space taken up below them.  

.2
You can use regular 
\f(BIdu\fB options, like
.T \-a .

.2
Warning: this program uses recursive data structure without
actually employing Perl 5 features.  This makes it surpassingly 
tricky.
.bp 
.au "TSC \- intro.xx"

.c
Sample dutree Output

.b
863 etc
  |    751 .
  |     57 install
  |     35 uucp
  |     11 .install.d
  |      4 openwin
  |      |        3 modules
  |      |        1 .
  |      3 nserve
  |      |       2 .
  |      |       1 auth.info
  |      1 sm
  |      1 sm.bak
.e