Ruby ruby pty expect 脚本问题

chinalegend · June 23, 2013 · 2879 hits
require 'pty'
require 'expect'

PTY.spawn("su legend") do |r_f,w_f,pid|
  r_f.expect(/^Password:.*/) do
    w_f.print "123\n"
  end

  r_f.expect('$') do
    w_f.print "cd ~\n"
  end

  r_f.expect('$') do
    w_f.print "touch test\n"
  end

  begin
    w_f.print "quit\n"
  rescue
  end
end

我这断代码的目的很简单,切换用户后,创建一个文件,我执行的时候报错:

俺们新手,不太熟悉,请教下大虾该咋整啊!!!

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