Warning: chmod(): Operation not permitted in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

#!/usr/bin/env bash

notexist=0
file=""

function usage() {
  echo '''Usage: check_file_exists [OPTIONS]
  [OPTIONS]:
	-f file	    file to be checked (required)
	-e          return OK if file is missing
  '''
}

#get options
while getopts "ef:" opt; do
  case $opt in
    e)
      notexist=1
      ;;
    f)
      file=$OPTARG
      ;;
    *)
      usage
      exit 3
      ;;
  esac
done

if [ -z "$file" ]; then
	usage
fi

if [ $notexist -gt 0 ] && [ -e "$file" ]; then
	echo "CRITICAL: file should not exist - ${file}"
	exit 2
elif [ $notexist -eq 0 ] && [ ! -e "$file" ]; then
	echo "CRITICAL: file does not exist - ${file}"
	exit 2
else
	echo "OK: ${file}"
	exit 0
fi