bitbake -e package_name > package_name.env ./get_vars (modify package_name.env file in script)
We generate a file package_name.vars: variables of type "VAR=" are replaced with "yocto_vars"["variable_name"]="value" fonctions are replaced as yocto_fonctions=["fonction_name"]='{}' python fonction are replaces as yocto_python_fonctions=["fonction_name"]='{}'
To display SRC_URI variable:
echo