shell批量免秘钥登录

注意：ip.txt和send_ssh_key.sh必须在同一根目录下

# 根据以下格式写入服务器信息ip.txt，用于免密钥登录#-----------# ip:password#192.168.1.110:7758521#192.168.1.111:7758521#192.168.1.112:7758521#-----------

#!/bin/bash# 生成ssh keyif [[ ! -f "/root/.ssh/id_rsa" ]];then  echo "gen ssh key"  ssh-keygen -t rsa -b 2048 -N '' -f /root/.ssh/id_rsafi# 检测是否安装了 expectif ! expect -v &>/dev/null;then  echo "install expect"  yum install expect -yfi# 循环文件中的ipfor p in $(cat ip.txt|grep -v '#');do  ip=$(echo "$p"|cut -f1 -d":")       # 取出当前IP  password=$(echo "$p"|cut -f2 -d":") # 取出当前密码  # expect 交互过程  expect -c "spawn ssh-copy-id -i /root/.ssh/id_rsa.pub root@$ip        expect {                \"*yes/no*\" {send \"yes\r\"; exp_continue}                \"*password*\" {send \"$password\r\"; exp_continue}                \"*Password*\" {send \"$password\r\";}        }"