#!/bin/bash
#批量实现SSH免密登录
#没有则安装expect
if ! rpm -q expect > /dev/null
then
echo "###expect 未安装，现在安装###"
yum install -y expect &>/dev/null
if [ $? -ne 0 ]
then
echo "###expect 安装失败###"
exit 1
fi
fi
#本机没有SSH密钥则生成
if [ ! -f ~/.ssh/id_rsa ]
then
echo "###请按3次enter键###"
ssh-keygen -t rsa
fi
ssh_expect () {
expect -c "set timeout -1;
spawn ssh-copy-id -f $1
expect {
"yes/no" { send -- yes\r;exp_continue;}
"password:" { send -- $2\r;exp_continue;}
eof
}";
}
[ -f hosts.txt ] && rm -rf hosts.txt
#定义 hosts.txt
cat > hosts.txt << EOF
192.168.56.10
192.168.56.11
192.168.56.12
192.168.56.13
EOF
passwd=123456789
for ip in `cat hosts.txt |awk '{print $1}'`
do
ssh_expect $ip $passwd
done
