#!/bin/sh
#
#  report on a list of files
#
countem()
{
	if [ $totalsize ]; then
                :
        else
                totalsize=0
        fi
        if [ $count ]; then  
                :      
        else   
                count=0    
        fi     

        size=`wc -c $1 | gawk '{print $1}'`
        totalsize=`expr $totalsize + $size`	
	count=`expr $count + 1`
}
minormax()
{
	if [ $largest ]; then
		:
	else
		largest=o
	fi
	if [ $smallest ]; then
		:
	else
		smallest=9999999999
	fi
	if [ $size -gt $largest ]; then
		largest=$size
		largestfn=$infile
	fi
	if [ $size -lt $smallest ]; then
		smallest=$size
		smallestfn=$infile
	fi
}

if [ $# -le 1 ]; then
        echo  -n "What do you want to process   "
        read  ifiles
else
        ifiles=$*
fi
echo Report generated on `uname -n` on `date`
echo Report on files $ifiles
for infile in $ifiles
do
	if [ ! -r $infile ]; then
        echo "Error - input file $infile is not readable"
	continue
	fi
        countem $infile
	minormax
done
echo "Number of files: $count"
echo "Total size:      $totalsize"
echo "Largest file is $largestfn and is $largest bytes"
echo "Smallest file is $smallestfn and is $smallest bytes"