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Latest Tutorials

Sed and Awk are powerful text manipulating programs used on the Linux Command Line and in Shell Scripts. Learn how sed and awk work and how to write your own sed scripts.

Learn about all the hidden features and utilities of Google! Also, indulge yourself to some entertaining Google easter eggs.

Learn the fundamentals of Python! This tutorial series includes primitive data types, namespaces, functions and modules.

Latest Challenges

Try solving Project Euler problem 12, in finding the first triangle (generated by adding the natural numbers) to have over five hundred divisors.

Find out how to implement a method that checks if a number is prime in Java.

Try solving Project Euler problem 27, a question concerning quadratic primes from Project Euler in Java.