#!/bin/sh

# TrimWhiteSpace.sh
# Mon Mar 23 17:42:42 PDT 2009
# Chieh Cheng
# http://www.CynosureX.com/

# GNU General Public License (GPL) Version 2, June 1991

  scriptName=`basename "$0"`

  trim ()
  {
    string="$1"
    echo "${string}" | sed "s/^[ 	
]*//" | sed "s/[ 	
]*$//"
  }

  usage ()
  {
    echo "  Usage:   ${scriptName}"
    echo "             or"
    echo "           ${scriptName} \"string\""
  }

  if [ $# -gt 1 ]
  then
    usage
  else
    if [ $# -eq 1 ]
    then
      string="$1"
      trim "${string}"  
    else
      while read line
      do
        trim "${line}"
      done
    fi
  fi