How to use Python for scripting and execution in Linux

How to use Python to write and execute scripts in Linux

In the Linux operating system, we can use Python to write and execute various scripts. Python is a concise and powerful programming language that provides a wealth of libraries and tools to make scripting easier and more efficient.

Below we will introduce the basic steps of how to use Python for script writing and execution in Linux, and provide some specific code examples to help you better understand and use it.

1. Installing Python

First, you need to install Python in Linux. Most Linux distributions have Python pre-installed. You can enter the following command on the command line to check whether Python has been installed and its version number:

python --version

If Python is not installed or the version is too low, you can Install through a package manager (such as apt, yum, etc.). For example, to install Python on Ubuntu you can use the following command:

sudo apt-get install python

2. Create and edit Python scripts

Once you have Python installed on your Linux system, you can use Any text editor to create and edit Python scripts. You can use command line tools to create a new Python script file, for example:

touch script.py

Then, you can use a text editor to open this script file, for example:

vi script.py

In this script file , you can write your Python code. Here is a simple example:

print("Hello, World!")

The code in this example will output "Hello, World!" when executed.

3. Execute Python script

After you finish writing the Python script, you can use the following command to execute the script:

python script.py

This command will be executed Python code in a script file and output the results. For our previous example, executing the command would print "Hello, World!".

4. Add execution permissions

If you want to execute the Python script directly in the command line without adding the "python" keyword in front, you can give the script file Add execution permissions. Use the following command to add execution permissions to the script file:

chmod +x script.py

After adding execution permissions, you can directly use the following command to execute the script in the command line:

./script.py

This makes it more convenient to run the script .

5. Importing and using Python libraries

Python provides many useful libraries and tools that you can import and use in your scripts. For example, if you want to use the requests library to make network requests in a script, you can use the following command to install the library:

pip install requests

Then, add the following code at the beginning of the script file to Import this library:

import requests

Next, you can use the various functions and methods of the requests library to send network requests in your script.

Summary

Scripting and executing with Python in Linux is very simple. You just need to install Python, create and edit a Python script file, and then execute the script. You can execute scripts more easily by adding execution permissions to the script file. In addition, you can import and use various Python libraries to extend your script functionality. I hope that through this article, you can better understand and use Python to write and execute scripts in Linux.

If you encounter problems during specific script writing and execution, you can refer to the official Python documentation or seek help in the online community. Have fun writing and executing scripts with Python in Linux!

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