Linux编写Shell脚本利用expect实现免问答ssh登录服务器

Posted 2021-06-08 白-胖-子

• 脚本调用expect
• 将脚本设置为开机运行，
• 每次ssh登录相应服务器时，
• spawn会监控到ssh动作，
• 并匹配IPLIST，
• 从而自动进行用户名密码及登陆后动作

#!/bin/bash
NET=10.0.0
user=root
password=timonium
IPLIST="
8
18
28
38
48
58
"
for ID in $IPLIST ;do
ip=$NET.$ID
expect <<EOF
set timeout 20
spawn ssh $user@$ip
expect {
"yes/no" { send "yes\\n";exp_continue }
"password" { send "$password\\n" }
}
expect "#" { send "sed -i 's/^SELINUX=enforcing/SELINUX=disabled/'
/etc/selinux/config\\n" }
expect "#" { send "setenforce 0\\n" }
expect "#" { send "exit\\n" }
expect eof
EOF
done