Linux

简单模式：

#!/usr/bin/expect -f   set timeout 5   spawn ssh root@192.168.0.1expect "*assWord*"   send "root/r"   expect "#"   send "ifconfig /r"   expect eof

讲解：

send：用于向进程发送字符串expect：从进程接收字符串 比如：expect "*assword*"spawn：启动新的进程interact：允许用户交互怎么使用变量：

#!/usr/bin/expect -fset port 22set user rootset host 192.168.0.12set password rootset timeout -1spawn ssh -D $port $user@$host "ifconfig"expect {  "*yes/no" { send "yes/r"; exp_continue}  "*assword:" { send "$password/r" }  }  expect "*#*"  send "ifconfig > /home/cfg /r"send "exit/r"}

讲解：

expect {  "*yes/no" { send "yes/r"; exp_continue}  "*assword:" { send "$password/r" }  }  选择模式，exp_continue表示继续。通过读取配置文件获取变量：配置文件

192.168.0.1 root192.168.0.2 root

自动化登录脚本

#!/usr/bin/expect -fset f [open ./ip r]  while { [gets $f line ]>=0 } {       set ip [lindex $line 0]     set pwd [lindex $line 1]spawn ssh $ipexpect  "*password:" { send "$pwd/r" }expect "#"send "ifconfig /r"send "exit/r"interact}

讲解：

可以多台服务器循环执行，是个非常使用的方式！

自动化远程拷贝文件：

#!/usr/bin/expect -fset port 22set user rootset host 192.168.28.30set password rootset timeout -1spawn scp $host:/home/cfg ./expect {"*yes/no" { send "yes/r"; exp_continue}"*assword:" { send "$password/r" }}expect eof

讲解：

原理和ssh一样

远程执行命令后写入文件，再通过scp到本机服务器：

#!/usr/bin/expect -fset port 22set user rootset host 192.168.28.30set password rootset timeout -1spawn ssh -D $port $user@$host "ifconfig"expect {"*yes/no" { send "yes/r"; exp_continue}"*assword:" { send "$password/r" }}expect "*#*"send "ifconfig > /home/cfg /r"send "exit/r"interactspawn scp $host:/home/cfg ./expect {"*yes/no" { send "yes/r"; exp_continue}"*assword:" { send "$password/r" }}expect eof

讲解：

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