Don't think expo works on linux... The simulator does not work. Npm breaks with expo-cli install so you must use Yarn. Even then once your up and running and you try to use the simulator it to is broken.. not sure if their is a fix i looked.. maybe you know a workound.. let us know ty.. thanks for the good work you do, it's good stuff.
im sorry ... I'm using ubuntu 18... heres my uname -a
linux myhostname 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux