#!/bin/sh

error_fn()
{
  echo "ERROR: $1"
  exit 1
}

if [ $# -lt 2 ]
then
  error_fn "you need at least 2 arguments "
fi

echo the first argument was $1 it\'s properties are:
ls -l $1
echo the first argument was $2 it\'s properties are:
ls -l $2


if [ $? -ne 0 ]
then
  error_fn "could not read the directory: $1"
fi

if test -e my_file
then
  error_fn "my_file does not exist "
fi


#<title>CSC128: Shell Script Examples - error functions  </title>