# ubuntu
sudo apt-get install software-properties-common;
sudo add-apt-repository ppa:fontforge/fontforge;
sudo apt-get update;
sudo apt-get install fontforge;
# fedora
yum install fontforge;
#ubuntu
sudo apt install ttf-mscorefonts-installer
( when <ok> appears press TAB and enter )
sudo fc-cache
fc-match Arial
fc-match Times