#!/bin/sh

if [ $# -eq 0 ] ; then
  echo "uasge: sortfl file1 [ file2 ... ]"
  exit 1 
fi

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

for i in $j ; do
  if [ ! -f $i ]; then
    echo "sortfl: Can't read $i" >&2
    echo
  else
    echo "$i"
    head -n 1 $i
    tail -n 1 $i
    echo ""
  fi
done