EXPECT交互式批量上传公钥

EXPECT交互式批量上传公钥

 

# vim key.sh

#/bin/bash
Public_Key() {
[ ! -f /usr/bin/expect ] && yum install expect -y &>/dev/null  #判断expect是否安装，没有则安装expect（这个挺好用的）
/usr/bin/expect <<EOF   #在控制节点机器上生成密钥对，一种是从未生成过，一种是原来生成过（注意本脚本选择不覆盖）
set timeout 30
spawn ssh-keygen
expect "(/root/.ssh/id_rsa):"
send "\n"
expect  {
        "Overwrite" { send "n\n" }
        "Enter passphrase (empty for no passphrase):" {
                send "\n"
                expect "Enter same passphrase again:"
                send "\n" }
}
expect eof
EOF
while read line;do #遍历循环/test/host_passwd.txt文件，批量上传公钥
host=$(echo $line | awk '{print $1}')
passwd=$(echo $line | awk '{print $2}')
/usr/bin/expect <<EOF
spawn ssh-copy-id $host
expect {
        "yes/no" { send "yes\n"; exp_continue }
        "password:" { send "$passwd\n"}
}
expect eof
EOF
done < /test/host_passwd.txt  #主机ip及密码文件的绝对路径
}
Public_Key && echo "now you can ssh ip" || echo "Please check your host_passwd.txt"

# cat /test/host_passwd.txt

192.168.10.10    123456
192.168.10.11    123456
192.168.10.12    123456
192.168.10.13    123456
...

完成后删除 rm -rf /test/host_passwd.txt 即可