Add summary

content/en/python-lifehacks/how-to-easily-write-linux-cli-tool.md

@@ -6,13 +6,13 @@ date: 2023-04-09
 ---
 I want to share the easiest way I know to write a CLI tool for Linux administration
 using python and Fire.
+<!--more-->
 ## Step 1: Install Fire
 ```bash
 pip install fire
 ```
 ## Step 2. Create a simple CLI tool
 Here is an example of a CLI tool that prints the Linux version to the terminal:
-<!--more-->
 ```python
 #!/usr/bin/env python3
 import fire