#!/bin/sh

if [ $# -eq 0 ]; then
  fn='-'
elif [ $# -eq 1 ]; then
  fn="$1"
else
  echo "usage: shwc [ file ]" >&2
  exit 1
fi

cat $fn | awk 'BEGIN { nl = 0; nw = 0 }
                     { nl++ ; nw += NF }
               END   { print "Lines:", nl, "words:", nw }'