Gazebo 환경변수

GAZEBO_MODEL_PATH: colon-separated set of directories where Gazebo will search for models
 
GAZEBO_RESOURCE_PATH: colon-separated set of directories where Gazebo will search for other resources such as world and media files.
 
GAZEBO_MASTER_URI: URI of the Gazebo master. This specifies the IP and port where the server will be started and tells the clients where to connect to.
 
GAZEBO_PLUGIN_PATH: colon-separated set of directories where Gazebo will search for the plugin shared libraries at runtime.
 
GAZEBO_MODEL_DATABASE_URI: URI of the online model database where Gazebo will download models from.
 

These defaults are also included in a shell script:source <install_path>/share/gazebo/setup.sh