double escape %

Author: mr-c

jenkins.bat

@@ -1,6 +1,6 @@
 set PATH=%PATH%;"C:\\Program Files\\Docker Toolbox\\"
 docker-machine start default
 REM Set the environment variables to use docker-machine and docker commands
-@FOR /f "tokens=*" %i IN ('docker-machine env --shell cmd default') DO @%i
+FOR /f "tokens=*" %%i IN ('docker-machine env --shell cmd default') DO %%i
 
 python setup.py test --addopts --junit-xml=tests.xml