Zsh vs Bash When we talk about UNIX-based programming we usually mean consoles, terminals and command line interfaces. The most common command shell is Bash, but there are other options available and widely used, such as the Z Shell or zsh.
In this article, Zsh vs Bash we will try to draw a line between the two shells and show the differences so that you can understand why you should use one or the other. But first, we will present each of them separately, before comparing them together.
What is data science and how does it work? Data science, big data , machine learning – you probably heard these big words, but how understandable was their meaning for you? For some, they are beautiful marketing lures. Someone thinks that data science is the magic that will force the machine to do whatever it orders for free. Others even believe that this is an easy way to make a lot of money. let’s try to explain what it means in a simple and understandable language.
I work in the field of automatic processing of a natural language, one of the data science applications, and often observe how people use these terms incorrectly, so I wanted to make a little clarity. This article is for those who have a poor idea of what data science is and wants to understand concepts.
[Read more…] about What is data scienceWhat are hashes and how are they used?
The hash sum (hash, hash code) is the result of processing some data by the hash function (hashing).
Hashes: type definition, checksum count, non-standard and iterated hashes
[Read more…] about What are hashes and how are they usedA practical example of How to use ghidra to attack crackme
First Download crackme from the site MalwareTech , the password to the archive – too MalwareTech.
So, let’s see what is in the archive. We see the executable file vm1.exe and dump file ram.bin. The explanation on the site says that we are dealing with an eight-bit virtual machine. The dump file is nothing more than a chunk of memory, in which random data and a flag that we need to find are interspersed. Let’s leave the dump file alone for a while and take a look at vm1.exe through the DiE program.
[Read more…] about How to use ghidra to attack crackmeZodiac killer cipher, October 20, 1968, Benicia, California, USA. A motorcyclist found the bodies of a young couple in the alley. A few months later, another couple was shot in a park several kilometers away. The killer later reported to the police station in the telephone booth. In addition to acknowledging his own murder, he also claimed responsibility for the first murder.
On August 1, 1969, the killer sent an e-mail to three local newspapers at the same time, claiming that he was a criminal and proved the details of the killing scene. At the same time, he also put different encrypted text in the e-mail, threatening newspapers must be announced before August 1 (Friday), otherwise, it will be from Friday until Sunday, until killing enough 12 people. In one email, the killer claimed that the ciphertext contained his identity information. These emails have a total of 408 symbols, and they are customarily referred to as 408 ciphers.
[Read more…] about The zodiac cipher is still a mystery