Total 22 Posts

## Monitoring Data Changes Using a HIDS

In this article I'll explain how to monitor your data and how to detect changes. This kind of monitoring is mostly done using a Host-based Intrusion Detection System (HIDS) like Integrit. In this article, we describe various methods for your different use-cases.

### IDS (Overview)

In general, an Intrusion Detection System

## Handling Unix Signals in Python

UNIX/Linux systems offer special mechanisms to communicate between each individual process. One of these mechanisms are signals, and belong to the different methods of communication between processes (Inter Process Communication, abbreviated with IPC).

In short, signals are software interrupts that are sent to the program (or the process) to

## How to Permanently Set $PATH in Linux ### Understanding the$PATH Variable

In this tutorial, we will show you how to permanently set your PATH on Linux.

First off, why should you care?

The $PATH variable, or just PATH, without the$ indicating variables, specifies a list of directories that impacts your computing platform's functionality in a critical way.

## Linux: Find Files Containing Text

This topic is essential knowledge for every user of UNIX, Linux, Solaris, OS X, and BSD. Furthermore, the LPI certification contains tricky questions about this.

If you want to find files with a certain filename using the command line then use either the find or the locate commands. But if

## Symbolic Links in Unix/Linux

Different file systems in the UNIX/Linux universe allow a variety of entries such as regular files, directories, sockets, named pipes, and links. In this article I will explain to you what links are, which types of links exist, how to create a symbolic link, and how to detect broken

## Array Loops in Bash

In this article we'll show you the various methods of looping through arrays in Bash. Array loops are so common in programming that you'll almost always need to use them in any significant programming you do. To help with this, you should learn and understand the various types of arrays

## Zsh vs Bash

When we talk about UNIX based programming, it's usually about the shells, terminals, and the command line interfaces. The most prevalent shell in this regard is Bash but there are other variants available and used widely as well, like Zsh or the Z shell.

In this article, we'll attempt to

## Substrings in Bash

Throughout your programming career you'll find that there are quite a few times you need to extract a substring from another string. Strings are one of the most common data structures, so this comes up often. I bet you could tell me how to do it in your favorite programming