my system is almost useles after running this cmd sudo apt-get remove --purge '^nvidia-.*'

Hello I'm very new to linux and the cmd line and have been learning a lot through google, firefox, and bing. I'm running Ubuntu server Xenial 16.04.07 LTS with all security patches from ubuntu, intrams enabled fips ect. on a WS WRX80-E SE SAGE WIFI PRO Asus board with a Threadripper pro 3975x with my ubuntu server on a fire cuda nvme m.2 ssd and many more drives as well 132 gb of ram after I put this cmd "***sudo apt-get remove --purge '^nvidia-.*' ...***" and following through with the question it asked me my system cant run any commands and now and is practically useless and broken. I was trying to fix my issue with my two graphics cards not being detected and I guess I did the wrong thing. I tried so many different ways that I thought by removing nvadia completely and then reinstalling it would help me but the person who posted the command I ran did me a very terrible diss-service as it was never my intent to take all of my permissions away and render my system useless and thus halt me on my projects. I hope some one on this site has working knowledge of the command I ran and what I did to my system and can help me fix all these issue. I have one thing going for me and that is that I'm still sshd in a terminal if you have working knowledge and a clear understanding of what happens when the above command is run please get back to me with a resolution. Thank you