psuh-keys-to-hosts.sh

#!/usr/bin/env bash

IP_LIST_FILE="ips"

KEYS_FILE="keys.txt"

SSH_PASS="$(head -1 ssh_password)"

SSH_USER="root"
SSH_PORT="22"

mapfile -t keys < "${KEYS_FILE}"
mapfile -t ips < "${IP_LIST_FILE}"

for key in "${keys[@]}"; do
    SSH_KEY_TMP_FILE="$(mktemp)"
    chmod 600 "${SSH_KEY_TMP_FILE}"
    echo "${key}" > "${SSH_KEY_TMP_FILE}"
    for ip in "${ips[@]}"; do
        sshpass -p "${SSH_PASS}" ssh-copy-id -i "${SSH_KEY_TMP_FILE}" \
            "${SSH_USER}@${ip}" -p "${SSH_PORT}"
    done
    rm -vf "${SSH_KEY_TMP_FILE}"
done