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hongsw/init.sh

Last active May 24, 2022 08:19
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Add a new authorized key to an AWS EC2 instance by a new .pem file
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init.sh
chmod 400 new.pem
ssh-keygen -y -f new.pem > new.pub
cat ./new.pub | ssh -i old.pem USER@HOST "cat >> ~/.ssh/authorized_keys"
# Test
ssh -i new.pem USER@HOST
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hongsw commented May 24, 2022 •
edited
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If you went to add a new user and .pem file at one time,

cat ./new.pub | ssh -i old.pem USER@HOST "sudo adduser newuser && sudo mkdir -p /home/newuser/.ssh && sudo tee /home/newuser/.ssh/authorized_keys"

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