openSUSE/SLES: echo "neofetch" >> /etc/profile.d/motd.sh
Ubuntu: sudo bash -c $'echo "neofetch" >> /etc/profile.d/neofetch_motd.sh && chmod +x /etc/profile.d/neofetch_motd.sh'
wget https://github.com/dylanaraps/neofetch/archive/master.zip
unzip master.zip
cd neofetch-master
sudo make install