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).
You can take a temperature using the mouth (oral), anus (rectal), armpit (axillary), or ear (tympanic). But the temperature readings vary depending on which one you use, and you need an accurate body temperature to determine if a fever is present.