#!/bin/bash
#
#  report on a list of files
#
typeset -i size
typeset -i totalsize
typeset -i count
typeset -i largest
typeset -i smallest
size=0; totalsize=0; count=0; largest=0; smallest=9999999999

countem()
{
        size=`wc -c $1 | gawk '{print $1}'`
        (( totalsize+=size ))
        (( count+=1 ))

}

minormax()
{
	if (( $size > $largest )); then
		largest=$size
		largestfn=$infile
	fi
	if (( $size < $smallest )); then
		smallest=$size
		smallestfn=$infile
	fi
}

if (( $# <= 1 )); then
        echo  -n "What do you want to process   "
        read  ifiles
else
        ifiles=$*
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"