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Python Execute Shell Command And Get Output

Last Updated : Mar 11, 2024

Python Execute Shell Command And Get Output

In this article we will show you the solution of python execute shell command and get output, firstly we understand what is the shell prompt.

A shell is a computer program that presents a command line interface which allows you to rule your computer utilizing commands accessed with a keyboard rather of controlling graphical user interfaces(GUIs) with a mouse/ keyboard/ touchscreen combination.

Step By Step Guide On Python Execute Shell Command And Get Output :-

As a scripting language, Python is a valid preference for automation. You can write plain Python code to consecution and automate the accomplishment of distinct programs.

And when the jobs are completed, you can write some Python script to extract and analyze the results.

Some programs, similar as Scrapy, right now have APIs that Python can call direct, which means you can run these programs with native Python code direct. though, multiple quietly don’t have proper APIs for Python and you would still require to run the shell commands direct.

Originally, you can simply get the exit code of the shell command and cannot get the normal output or error from os.system().

Well, this may not exist an effect if you don’t mind about the output or error communication of the shell command and exactly want to run it.

In this case, compensate a little more attention to the alternate drawback, which is too important.

Secondly, os.system() is sensitive to shell injection, which is similarly called OS command injection.

This is a severe security issue if your program accepts user input that will exist applied in the os.system() function.

In programming, the shell is a software interface for entering the functionality of the operating system. Shells in the operating system can be either a CLI (Command Line Interface) or a GUI (Graphical User Interface) predicated on the functionality and fundamental operation of the device.

Implementing Shell Commands with Python operating the OS module

The os module in Python includes functionality to conduct with the operating system. It's one of the normal serviceability modules of Python.

It correspondingly offers a accessible way to utilize operating system- suspended features, shell commands can exist applied operating the system() technique in the os module.

Executing Shell Commands with Python operating the subprocess module

The Python subprocess module can exist operated to run substitute programs or operations.

Picking up the input/ output/ error channels and exit codes of distinct commands is similarly useful.


Then. we're utilizing the subprocess.Popen() technique to implement the echo shell script utilizing Python.

You can carry further arguments to the Popen function Object(), like shell = True, which will produce the command run in a different shell.

Then. we're utilizing the system() technique to implement the pwd shell script utilizing Python. run() is also changeable and speedily path to run shell scripts, operate the Popen function.

import os
host = input(“Enter the host or ip address you want to check it:”)
os.system(f”ping -c 3 {host}”)
  1. In the first line of code we import OS module
  2. In the second line of code/script we take the user input for hostname or ip address
  3. After that we use the ping command for network connectivity.

Conclusion :-

Hence, we successfully learnt about the concept of executing shell command and get output.

I hope this article on python execute shell command and get output helps you and the steps and method mentioned above are easy to follow and implement.

Author Image About Pragati

Experienced coding content writer who enjoys breaking down complex concepts in programming languages like Java, Python, C, and C++. Over three years of experience producing interesting and relevant content for a variety of entities. Committed to providing concise and easy-to-understand articles that assist readers in easily understanding technology and industry trends in the world of coding and software development.

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