chmod 700 /tmp/aws-user-data.script
# Run the user-data script
- /tmp/aws-user-data.script &>/var/log/user-data.log
+ local now="$(date -u +"%s")"
+ /tmp/aws-user-data.script &>/var/log/user-data.log.${now}
# Delete the script right away
rm /tmp/aws-user-data.script