add -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null
ex:
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null [email protected]${ARM_SERVER_IP}
scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -pr [email protected]${ARM_SERVER_IP}:${CODE_PATH}/out/* sbl1_rpm/