$ fricas The directory for FriCAS, /usr/lib/fricas/target/x86_64-alt-linux-gnu, does not exist. Goodbye. Ну и версия больно старая. Новая: June 27, 2018 -- FriCAS 1.3.4 released.
На Sisyphus.
В Сизифе fricas-1.3.6-alt2