python subprocess shell command

Published: 22 February 2024
on channel: CodeWave

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python's subprocess module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes. this module is particularly useful when you need to execute shell commands from within a python script or interact with other programs.
in this tutorial, we'll explore how to use the subprocess module to execute shell commands in python, covering basic usage and some common scenarios.
to execute a shell command using subprocess, you typically follow these steps:
let's look at an example:
in this example:
after executing the command, we check the return code (result.returncode) to determine if the command was successful. if successful, we print the command output; otherwise, we print the error message.
you can also pass input to the shell command and capture its output in real-time. let's see how:

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