#! /bin/sh
usage()
{
  echo "Usage:"
  echo "  `basename $0` \"title\" to provide a new Terminal title."
  echo "  `basename $0` -h        to set the hostname as the Terminal title."
}

help0()
{
  echo "ERROR: No argument provided."
  usage;
}

help2()
{
  echo "ERROR: Too many arguments provided."
  usage;
}

if [ $# -eq 0 ]
then
  help0;
elif [ $# -eq 1 ]
then
  if [ "$1" == "-h" ]
  then
    windowname=`hostname | sed "s/\.home//" | sed "s/\.local//" | sed "s/\.fios-router//" `;
  else
    windowname=$1;
  fi
  echo "\033]0;$windowname\007\c";
  # The following alternative approach is a bad idea.
  # It changes all Terminal windows, including future Terminal windows, 
  # even if you close all Terminal windows, Quit from Terminal and launch 
  # a new Terminal window.
  # osascript -e "tell application \"Terminal\" to set custom title of window 1 to \"$1\""
elif [ $# -gt 1 ]
then
  help2;
fi