Install font without font viewer in Linux Distro

Xubuntu and other Linux distros may not have font viewer. This forbids you to install fonts. However, we can install fonts without font viewer in Linux. Fonts can be installed in these simple steps. 1) Open Terminal and type sudo thunar type your su password [password isinvisible] 2) browse to File System --> /usr/share/fonts/truetype 3) Copying all fonts you are trying to install in a New folder. 4) Close Thunar 5) Go back to TERMINAL and type sudo fc-cache -f 6) Exit terminal with exit command. Your font is installed now.