A lot of tools output data as comma-separated values (CSV). It is a simple but common tabular data format of plaintext that can easily be processed. Each line of the file represents a single record. A record consists of the same number of fields, or columns. Usually, the delimiter between
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.
In general, an Intrusion Detection System
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
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.
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
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
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