#!/bin/sh

if [ $# -eq 0 ]; then
  echo "usage: primwc files" >&2
  exit1 
fi

j=`( for i do
  echo "$i"
  done )`

for i in $j ;  do
  if [ -f $i ]; then
  c="`cat -n $i | tail -n 1`"
  set $c
  echo "The answer is $i $1"
  else
   echo "File not valid"
  fi
done