docker 执行容器内脚本命令获取bashrc用户环境变量

start.sh依赖用户bashrc中export的变量，如下命令总是获取不到

docker exec -it docker_ros_launch_lh /bin/bash -c "/home/work/lgsvl_client/shcmd/start.sh"

大胆尝试加bash加-i参数，最终成功

docker exec -it docker_ros_launch_lh /bin/bash -ic "/home/work/lgsvl_client/shcmd/start.sh"