File _service:obs_scm:README.en.md of Package ros2_ros_environment

# ros_environment

#### Description

The package provides the environment variables `ROS_VERSION`, `ROS_DISTRO`, `ROS_PACKAGE_PATH`, and `ROS_ETC_DIR`.

#### Software Architecture
Software architecture description

ros_environment provides the environment variables

input:

```
├── CMakeLists.txt
├── LICENSE
├── env-hooks
│   ├── 0.ros_distro_check.sh.in
│   ├── 1.ros_distro.bat.in
│   ├── 1.ros_distro.dsv.in
│   ├── 1.ros_distro.sh.in
│   ├── 1.ros_localhost_only.bat.in
│   ├── 1.ros_localhost_only.dsv.in
│   ├── 1.ros_localhost_only.sh.in
│   ├── 1.ros_python_version.bat.in
│   ├── 1.ros_python_version.dsv.in
│   ├── 1.ros_python_version.sh.in
│   ├── 1.ros_version.bat.in
│   ├── 1.ros_version.dsv.in
│   └── 1.ros_version.sh.in
└── package.xml
```

#### Installation

1.  Download RPM

aarch64:

```
wget https://117.78.1.88/build/home:Chenjy3_22.03/openEuler_22.03_LTS_standard_aarch64/aarch64/ros_environment/ros-foxy-ros-ros_environment-2.5.1-2.oe2203.aarch64.rpm
```

x86_64:

```
 https://117.78.1.88/build/home:Chenjy3_22.03/openEuler_22.03_LTS_standard_x86_64/x86_64/ros_environment/ros-foxy-ros-ros_environment-2.5.1-2.oe2203.x86_64.rpm
```

2.  Install RPM

aarch64:

```
sudo rpm -ivh --nodeps --force ros-foxy-ros-ros_environment-2.5.1-2.oe2203.aarch64.rpm
```

x86_64:

```
sudo rpm -ivh --nodeps --force ros-foxy-ros-ros_environment-2.5.1-2.oe2203.x86_64.rpm
```

#### Instructions

Dependence installation:

```
sh /opt/ros/foxy/install_dependence.sh
```

Exit the following output file under the /opt/ros/foxy/ directory,Prove that the software installation is successful.

output:

#### Contribution

1.  Fork the repository
2.  Create Feat_xxx branch
3.  Commit your code
4.  Create Pull Request

#### Gitee Feature

1.  You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
2.  Gitee blog [blog.gitee.com](https://blog.gitee.com)
3.  Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
4.  The most valuable open source project [GVP](https://gitee.com/gvp)
5.  The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
6.  The most popular members  [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)