PAC=$1
USER=$2
TEMPFILE=/tmp/${PAC}_du_httpd.txt
COUNTFILE=/tmp/${PAC}_httpd_count.txt

if [ "$PAC" = "" ]; then
  echo "call: ./pac-du-httpd.sh tim00"
  exit
fi

if [ "$USER" = "" ]; then
  rm -f $TEMPFILE
  touch $TEMPFILE
  chmod a+rw $TEMPFILE
  # run it for the packet user as well
  ./pac-du-httpd.sh tim00 ~ >& /dev/null

  cd ~/users; for USER in *; do sudo -u "$PAC-$USER" ../pac-du-httpd.sh $PAC $USER; done;

  # summarize the sizes
  export COUNT=0
  cat $TEMPFILE | while read line; do export COUNT=$[$COUNT+`echo $line | cut -f1 --delim " "`]; echo $COUNT > $COUNTFILE; done
  echo "diskspace used by files that belong to user httpd in your directories in bytes:"
  cat $COUNTFILE
  rm $COUNTFILE
  mv $TEMPFILE ~
  echo "see details in ~/"`basename $TEMPFILE`
else
  find $USER -user httpd | while read line; do path="`pwd`/$line"; if [ -f "$path" ]; then du -s "$path" -B 1 >> $TEMPFILE; fi; done
fi