current file's path
puts "File.dirname(__FILE__) == #{File.dirname(__FILE__)}"
current work directory
$CurrentDir = Dir.pwd
# Parent of current work directory
File.expand_path("..",Dir.pwd)
puts File.expand_path('../.')
current file's path
puts "File.dirname(__FILE__) == #{File.dirname(__FILE__)}"
current work directory
$CurrentDir = Dir.pwd
# Parent of current work directory
File.expand_path("..",Dir.pwd)
puts File.expand_path('../.')