How to set environment variables can be found in the [docs]( https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#set-env-vars).
And there also seem to be [different ways]( https://stackoverflow.com/a/62508395/991496).
Upon updating Fedora I got the error:
```
Cannot enable multiple streams for module 'maven'
```
This can be solved by running:
```
dnf module reset <name>
```
Install OpenJDK 8 (JAVA) in Ubuntu Systems via PPA Repository. How to install OpenJDK 8 in Ubuntu 14.10, Ubuntu 14.04 and Ubuntu 12.04 Systems. OpenJDK 8 is also available in Ubuntu Software Center for Ubuntu 14.10 and Ubuntu 15.04.