How to run privileged programs without elevation by sudo?
The low hanging fruit is to make an alias in your shell to avoid having to type sudo

Assuming bash, add this to your ~/.bash_profile (or other dot file of choice)

alias mtr=‘/usr/bin/sudo /usr/local/sbin/mtr’


Then close your command / shell / window or paste the alias command after saving it for next shell start to be active. I would recommend against adding this to the sudoers file, but I’m sure someone will edit this to post how to do that or post another answer if that’s viable. I’d also advise against moving the tool or setting the uid of the tool to be root permissions on the filesystem. Discussion on that decision is happily well covered at the source:


https://github.com/traviscross/mtr/issues/204#issuecomment-487325796