open

# File lib/shell/command-processor.rb, line 111
    def open(path, mode = nil, perm = 0666, &b)
      path = expand_path(path)
      if File.directory?(path)
        Dir.open(path, &b)
      else
        if @shell.umask
          f = File.open(path, mode, perm)
          File.chmod(perm & [email protected], path)
          if block_given?
            f.each(&b)
          end
          f
        else
          File.open(path, mode, perm, &b)
        end
      end
    end