免密脚本

#!/usr/bin/bash
keygen(){
/usr/bin/expect <<-EOF &> /dev/null
spawn ssh-keygen
expect {
“.ssh/id_rsa):” { send “\r”; exp_continue }

      "no passphrase): "    { send "\r"; exp_continue }
      " again:"             { send "\r"}    
}

expect eof
EOF
echo “秘钥以建立”
}
sen_keygen(){
/usr/bin/expect <<-EOF &> /dev/null
spawn ssh-copy-id -i $ip
expect {
“yes/no)?” { send “yes\r” ; exp_continue }
"password: " { send “1\r” }

}
expect eof
EOF

}
keygen
for ip in $(cat ./2.txt)
do
sen_keygen $ipecho"$ip 秘钥已发送"
done