OS Module : Overview

OS Module

The OS module in Python provides a way of using operating system dependent functionality.

The os module also offers functions to find important information about your location or about the process. In this post I will show some of these functions.

• Python Programming – Python Directory Methods
• Python System Administration
• OS.Walk and Fnmatch in Python

OS Functions

import os

os.system()		Executing a shell command
os.environ()		Get the users environment
os.getcwd()	 	Returns the current working directory.
os.getgid()		Return the real group id of the current process. 
os.getuid() 		Return the current process’s user id.
os.getpid() 		Returns the real process ID of the current process.
os.uname()		Return information identifying the current OS.
os.chroot(path)		Change the root directory of the current process to path
os.listdir(path)	Return a list of the entries in the directory by path.
os.mkdir(path)		Create a directory named path with numeric mode mode
os.makedirs(path)	Recursive directory creation function
os.remove(path)		Remove (delete) the file path
os.removedirs(path)	Remove directories recursively
os.rename(src, dst)	Rename the file or directory src to dst
os.rmdir(path)		Remove (delete) the directory path

See the official Python documentation for more usage of the OS module.