Learn to Code. Shape Your Future
Knowing how to execute a shell command in Python helps you create programs to automate tasks on your system. There are multiple ways to execute a shell command in Python. The simplest ones use the os.system and os.popen functions. The recommended module to run shell commands is the Python subprocess module due to its flexibility … Read more
Bash has several internal variables and in this article we will look at the variable $$. What does this variable mean? How can you use it? $$ is a Bash internal variable that contains the Process ID (PID) of the shell running your script. Sometimes the $$ variable gets confused with the variable $BASHPID that … Read more
If you are working with Linux at some point you will likely start writing Bash scripts. The more your code will grow the more you will realise how useful Bash functions can be. What is a Bash function? Functions are used in Bash scripts, as in other programming languages, to group code in a simpler … Read more
The Bash array data type gives you a lot of flexibility in the creation of your shell scripts. Bash provides two types of arrays: indexed arrays and associative arrays. Indexed arrays are standard arrays in which every element is identified by a numeric index. In associative arrays every element is a key-value pair (similarly to … Read more
Disclosure: Some of the links and banners on this page may be affiliate links, which can provide compensation to CodeFatherTech (https://codefather.tech) at no extra cost to you. CodeFatherTech is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn fees by linking to … Read more
Learn to draw with the Python Turtle module. It’s a fun way to learn Python while discovering your creativity!
The for loop in Python is one of the main constructs you should be aware of to write flexible and clean Python programs. The Python for loop is a control flow statement that you can use to iterate over a sequence (e.g. a string, list, tuple, dictionary, set, string). The for statement executes a specific … Read more
Using args and kwargs can be quite cryptic especially if you are new to Python. Let’s find out together all you need to know about them. What are *args and **kwargs? *args and **kwargs allow to pass an arbitrary number of positional arguments (*args) and keyword arguments (**kwargs) to a Python function. You can use … Read more
A Python decorator is a feature (or design pattern) that allows to enhance the logic of functions, methods or classes without changing the original code. To represent a decorator in Python you can use the @ symbol followed by the name of the decorator. In this tutorial, we will go through 7 things you must … Read more
It’s very common to copy a list in your Python programs. But, what should you absolutely know about copying lists? How to copy a Python list? Python provides multiple ways to copy a list depending on what your program needs to do with the existing list. You can use the assignment operator, the list copy … Read more
