#!/usr/bin/perl# $RCSfile: dus,v $$Revision: 4.1 $$Date: 92/08/07 17:20:11 $# This script does a du -s on any directories in the current directory that# are not mount points for another filesystem.($mydev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,   $blksize,$blocks) = stat('.');open(ls,'ls -F1|');while (<ls>) {    chop;    next unless s|/$||;    ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,       $blksize,$blocks) = stat($_);    next unless $dev == $mydev;    push(@ary,$_);}exec 'du', '-s', @ary;