使用expect脚本实现Linux中自动输入密码

以下代码通过expect实现了登陆172.16.111.222服务器，并将该服务器中的一个目录打包，然后scp到本机的过程。

  1 #!/usr/bin/expect
  2 
  3 set timeout 20
  4 spawn ssh root@172.16.111.222
  5 expect "*password*" 
  6 send "root123\r"
  7 
  8 expect "*#"
  9 send "rm -rf /var/FTP.tar.gz\r";
 10 
 11 expect "*#"
 12 send "sudo -i\r"
 13 expect "*password*"
 14 send "root123\r"
 15 
 16 expect "*#"
 17 send "tar zcvf /var/FTP.tar.gz /var/ftp/\r"
 18 
 19 expect "*#"
 20 send "exit\r"
 21 sleep 1
 22 spawn scp root@172.16.111.222:/var/FTP.tar.gz ./ 
 23 expect "*password"
 24 send "root123\r"
 25 expect "*#"
 26 
 27 exit