Book Image

Hands-On Enterprise Automation with Python

By : Bassem Aly
Book Image

Hands-On Enterprise Automation with Python

By: Bassem Aly

Overview of this book

Hands-On Enterprise Automation with Python starts by covering the set up of a Python environment to perform automation tasks, as well as the modules, libraries, and tools you will be using. We’ll explore examples of network automation tasks using simple Python programs and Ansible. Next, we will walk you through automating administration tasks with Python Fabric, where you will learn to perform server configuration and administration, along with system administration tasks such as user management, database management, and process management. As you progress through this book, you’ll automate several testing services with Python scripts and perform automation tasks on virtual machines and cloud infrastructure with Python. In the concluding chapters, you will cover Python-based offensive security tools and learn how to automate your security tasks. By the end of this book, you will have mastered the skills of automating several system administration tasks with Python.
Table of Contents (20 chapters)

The popen() subprocess

The subprocess module implements only one class: popen(). The primary use of this class is to spawn a new process on the system. This class can accept additional arguments for the running process, along with additional arguments for popen() itself:

Arguments Meaning
args A string, or a sequence of program arguments.
bufsize It is supplied as the buffering argument to the open() function when creating the stdin/stdout/stderr pipe file objects.
executable A replacement program to execute.
stdin, stdout, stderr These specify the executed program's standard input, standard output, and standard error file handles, respectively.
shell If True, the command will be executed through the shell (the default is False). In Linux, this means calling the /bin/sh before running the child process.
cwd Sets the current directory before the child...