多个控制台执行的Shell脚本编写

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& 表示另外开一个窗口运行
sleep为等待7秒

roslaunch turtlebot_bringup minimal.launch &
sleep 7
roslaunch turtlebot_navigation mykinect2_bringup.launch &
sleep 5
roslaunch turtlebot_navigation mykinect2_gmapping.launch