each

# File lib/shell/builtin-command.rb, line 73
    def each(rs = nil)
      if @pattern[0] == //
        @files = Dir[@pattern]
      else
        prefix = @shell.pwd+"/"
        @files = Dir[prefix+@pattern].collect{|p| p.sub(prefix, "")}
      end
      rs =  @shell.record_separator unless rs
      for f in @files
        yield f+rs
      end
    end