[Linux] shell script로 password 변경

change to password in centOS

sed -i "s|#PasswordAuthentication no|PasswordAuthentication yes|g" /etc/ssh/sshd_config
systemctl restart sshd
echo '<password>' | passwd --stdin ec2-user

change to password in ubuntu

sed -i "s|#PasswordAuthentication no|PasswordAuthentication yes|g" /etc/ssh/sshd_config
systemctl restart sshd
echo '<ubuntu:password>' | chpasswd