ROS - rosdep 下载并安装依赖项

rosdep 来下载并安装依赖项

Usage: rosdep [options]
Commands:
rosdep check ...
        check if the dependencies of package(s) have been met.
rosdep install ...
        generate a bash script and then execute it.
rosdep db
        generate the dependency database and print it to the console.
rosdep init
        initialize rosdep sources in /etc/ros/rosdep.  May require sudo.
rosdep keys ...
        list the rosdep keys that the packages depend on.
rosdep resolve
        resolve to system dependencies
rosdep update
        update the local rosdep database based on the rosdep sources.
rosdep what-needs ...
        print a list of packages that declare a rosdep on (at least one of)
rosdep where-defined ...
        print a list of yaml files that declare a rosdep on (at least one of)
rosdep fix-permissions
        Recursively change the permissions of the user's ros home directory.
        May require sudo.  Can be useful to fix permissions after calling "rosdep update" with sudo accidentally.

例程：

        为 turtlesim 下载并安装系统依赖项。
        $ rosdep install turtlesim