Add a password to an OpenSSH private key generated without a password

add_password_to_ssh_keys.sh

cd .ssh/
mkdir -p ~/.ssh/backup_keys

## backup current keys just in case
for k in id_*; do
	cp $k backup_keys/$k"_bak_$(date +"%m_%d_%Y")"
done

## it will ask for a password for every key file
for k in $(ls id_* | grep -v pub); do
	echo $k
	ssh-keygen -p -f $k
done