#!/bin/bash
# toolong--Feeds the fmt command only those lines in the input stream
#   that are longer than the specified length.

width=72

if [ ! -r "$1" ] ; then
  echo "Cannot read file $1" >&2
  echo "Usage: $0 filename" >&2; exit 1
fi

while read input
do
   if [ ${#input} -gt $width ] ; then
     echo "$input" | fmt 
   else
     echo "$input"
   fi
done < $1

exit 0