the usage of linux command "expect"

最新推荐文章于 2025-09-09 11:44:36 发布

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最新推荐文章于 2025-09-09 11:44:36 发布

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文章标签： shell 运维

原文链接：http://www.cnblogs.com/bkylee/p/4872495.html

本文介绍了一种利用Expect脚本来简化SSH登录流程的方法。通过解析命令行参数并使用lindex获取用户名、主机名及密码，该脚本能够自动处理首次登录时的信任问题，并输入密码完成登录过程。修改脚本权限后，只需一条命令即可实现服务器的快速登录。

#! /usr/bin/expect -f
# this script is used to practise the command "expect"

#when "lindex" have been used here, the array index begins with 0 but not with 1
set user [lindex $argv 0]
set host [lindex $argv 1]
set passwd [lindex $argv 2]
set timeout 10

spawn ssh $user@$host
# expect "[yes/no]" {send "yes\r"} if 'ssh-ing' a server for the first time,

# you most likely encounter the case above concerning RSA
expect "password:" {send "$passwd\r"}
interact

# modify the script mode to be 0744

# now, one runs "./login.exp your_name host_name your_passwd" in the bash shell, logging in the server successfully.

转载于:https://www.cnblogs.com/bkylee/p/4872495.html