【用户】create_user_with_sshkey.sh

#!/bin/bash
# $ ssh-keygen -t rsa -b 2048 -C you_comment_here -f filename
# create user with ssh public key
# 20140214
username=‘yourname‘
useradd ${username}
id ${username}

[ -d /home/${username}/.ssh ] || mkdir -p /home/${username}/.ssh

cat <<_PUBKEY >> /home/${username}/.ssh/authorized_keys
your public key
_PUBKEY

chmod 700 /home/${username}/.ssh
chmod 600 /home/${username}/.ssh/authorized_keys
chown -R ${username}:${username} /home/${username}/.ssh

cat /home/${username}/.ssh/authorized_keys

【用户】create_user_with_sshkey.sh