sh (FileUtils)

         # File lib/rake.rb, line 712
    712:   def sh(*cmd, &block)
    713:     if Hash === cmd.last then
    714:       options = cmd.pop
    715:     else
    716:       options = {}
    717:     end
    718:     unless block_given?
    719:       show_command = cmd.join(" ")
    720:       show_command = show_command[0,42] + "..." if show_command.length > 45
    721:       block = lambda { |ok, status|
    722:         ok or fail "Command failed with status (#{status.exitstatus}): [#{show_command}]"
    723:       }
    724:     end
    725:     fu_check_options options, :noop, :verbose
    726:     fu_output_message cmd.join(" ") if options[:verbose]
    727:     unless options[:noop]
    728:       res = system(*cmd)
    729:       block.call(res, $?)
    730:     end
    731:   end