SSH免密登录脚本

ssh-copy-id.sh

使用sshpass命令：

#!/bin/bash
if [ ! -f ~/.ssh/id_rsa ];then
 ssh-keygen -f /root/.ssh/id_rsa -N ""
else
 echo "id_rsa has created ..."
fi
user=root
export SSHPASS=root123
for net in {21..250};do
        {
                    sshpass -e ssh-copy-id -o StrictHostKeyChecking=no $user@192.100.3.$net >/dev/null 2>&1
        }&
done

使用expect命令：

#!/bin/bash
if [ ! -f ~/.ssh/id_rsa ];then
 ssh-keygen -f /root/.ssh/id_rsa -N ""
else
 echo "id_rsa has created ..."
fi
user="root"
passwd="root123"
for net in {21..250};do
        {
            expect <<-EOF
              set timeout 10
              spawn ssh-copy-id -i /root/.ssh/id_rsa.pub $user@192.100.3.$net
              expect {
                "yes/no" { send "yes\n";exp_continue }
                "password" { send "$passwd\n" }
              }
              expect "password" { send "$passwd\n" }
EOF
        }&
done