- Exx should test for the existence of a `~/.subrc` file - The file can contain **global variables** declaration. - Variables to use in the **install** subcommand should be - **EXX_INSTALL_PATH**: for the path where the exx source should be moved - **EXX_SYMLINK_PATH**: for the path where the main executable should be symlinked - After sourcing the file, if those variables were set, use them directly - If not, prompt the user for those values and go on with the install process - At the end of the installation, advise the user to create the ~/.subrc file with the values he/she entered
