#task1: using os module in python.

import os; Creating, renaming, and deleting files and directories (os.mkdir(), os.makedirs(), os.rename(), os.remove(), os.rmdir(), os.removedirs()).

#task2: Process Management Executing external commands or programs (os.system(), os.popen()).

Getting process IDs (os.getpid()).

Managing environment variables (os.environ, os.getenv(), os.putenv()).