There are additional options available. to rpm which are detailed in the rpm(8) man page. The contents of the rpm(8) man. page should be thoroughly understood by the System Administrator. Return to: RedHawk Linux Frequently Asked Questions.
You can assess a fever based on symptoms without a thermometer while also looking at potential causative factors. So things to look out for are feeling extremely hot causing whole body sweats, followed by feeling insatiably cold, requiring layers of bedding and experiencing whole body shaking (rigors).
How to Check a Fever Without a Thermometer give a good over-view of how to determine if you have a fever. All gooogle searched. So if you did these searches and didn't find the answer you wanted, the information in your question is insufficient to answer you real question.