ssh免密码登录

#!/bin/bash

REMOTE_IP_ARRAY="10.10.1.xx"
REMOTE_PORT=22
REMOTE_USER=root
RSA_FILE=~/.ssh/id_rsa.pub

cd ~/.ssh

if [ -f $RSA_FILE ]; then
echo "rsa file exists!"
else
echo "rsa file not exist! now begin gen it"
ssh-keygen -t rsa
fi

ip=$REMOTE_IP_ARRAY
#ssh-keygen -t rsa
#for ip in $REMOTE_IP_ARRAY
#do
REMOTE_IP=$ip
ssh -p$REMOTE_PORT ${REMOTE_USER}@${REMOTE_IP} "mkdir .ssh;chmod 700 .ssh;touch ~/.ssh/authorized_keys;chmod 600 ~/.ssh/authorized_keys"
ssh-copy-id -p$REMOTE_PORT -i ${RSA_FILE} ${REMOTE_USER}@${REMOTE_IP}

　　

执行上面SHELL出现错误

-bash: ssh-copy-id: command not found

那么可以用这个方法：

ssh-keygen -t rsa

cat ~/.ssh/id_rsa.pub|ssh root@10.10.1.xx 'cat >> .ssh/authorized_keys'