I have a `.sh` file that locally sets some environment variables in my shell `source my_env.sh`. 

```
#!/bin/sh
echo "Setting up local environment variables"
export MY_URL="http://domain.com"
echo "Done"

```

This only sets the variables for that session. Which means that my Python Celery and Supervisor apps which run under a different session cannot access them. I understand I can run them under a user, but I want to know if on Ubuntu using the same shell script above if I can set the variables so they are globally accessible to all applications regardless of users or session?