安装expect yum install -y expect expect常用命令总结: spawn 交互程序开始后面跟命令或者指定程序 expect 获取匹配信息匹配成功则执行expect后面的程序动作 send exp_send 用于发送指定的字符串信息 exp_continue 在expect中多次匹配就需要用到 send_user 用来打印输出 相当于shell中的echo exit 退出expect脚本 eof expect执行结束 退出 set 定义变量 puts 输出变量 set timeout 设置超时时间 范例一：ssh登录远程主机执行命令,执行方法 expect 1.sh 或者 ./1.sh [root@localhost ~]# cat 1.exp #!/usr/bin/expect spawn ssh root@192.168.56.103 ifconfig expect "*password" send "123456 " expect eof [root@localhost ~]# expect 1.exp spawn ssh root@192.168.56.103 ifconfig root@192.168.56.103's password: ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.56.103 netmask 255.255.255.0 broadcast 192.168.56.255 inet6 fe80::9e0a:2fa8:e595:9c94 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:dc:16:df txqueuelen 1000 (Ethernet) RX packets 4876290 bytes 443505840 (422.9 MiB) RX errors 0 dropped 449 overruns 0 frame 0 TX packets 4610706 bytes 10191880682 (9.4 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 38696 bytes 2957553 (2.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 38696 bytes 2957553 (2.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 范例二：ssh远程登录主机执行命令，在shell脚本中执行expect命令,执行方法sh 2.sh、bash 2.sh 或./2.sh都可以执行. #!/bin/bash passwd='123456' /usr/bin/expect <<-EOF set time 30 spawn ssh saneri@192.168.56.103 df -Th expect { "*yes/no" { send "yes "; exp_continue } "*password:" { send "$passwd " } } expect eof EOF