In this cryptography challenge, the aliens are trying to hide their encrypted message between 9999 lines of garbage! But we know 1. Python 2. The size of the key & 3. part of the plain text. So cracking their password should not take long... ... https://www.youtube.com/watch?v=Mx_lmS1BsSY

In the previous video, we found out about the best world to start wordle with. Now we are facing a 5 letter word with some known characters.... How can we find the answer? Lets learn about and use REGEX to do so. ... https://www.youtube.com/watch?v=ZbdTghkVM_4

یه رمز به ما رسیده ولی یه فانکشن از برنامه غیب شده! سعی می کنیم اون فانکشن رو بنویسیم تا ببینیم رمز چی بوده. ... https://www.youtube.com/watch?v=OLF6oN-FxdY

Ever wondered how the Unix wizards conjure up their spells? Join me on a thrilling journey as we decode the magic behind the who and users commands. This isn't just another tutorial; it's your gateway to becoming a command line sorcerer on Linux, BSD, or Mac systems. ‍ We'll start by unraveling the mysteries of the UTMP unix version 1 format on OpenBSD, guiding you through the arcane process of information extraction. Then, we'll peek into the very source code of the users command, revealing secrets that have been closely guarded by the Unix Elders. By the end of this adventure, you'll not only be versed in the ancient UTMPX texts but also be ready to craft your very own users or who commands. Imagine creating a bespoke tool like is_logged_in, which can divine the presence of a user with a simple 1 or 0. Prepare for that 'Eureka!' moment, as the curtain lifts and the commandline's enigmatic workings become clear. If you're armed with basic programming knowledge, this video will elevate your skills to mystical heights. So, are you ready to wield the power once held by the Unix Elders? Let's embark on this quest for command line enlightenment together! 00:00 - Introduction to users & who command on OpenBSD & Linux & Unix 03:36 - man users 04:45 - understanding utmp file format 14:54 - studying `users` source on OpenBSD 20:55 - suggestions to write your own `users` command 23:40 - yes command ... https://www.youtube.com/watch?v=LBC_EnJU9HI