Total 13 Posts

## How to Use the Rsync Command in Unix

### Introduction

The digital revolution has changed our lives in many ways. Nowadays, our picture albums, music collections, bookshelves etc. are all digital - binaries written on a disk. Our life and work are shared between a multitude of devices. Companies have development, staging, testing areas and dozens of developers connected

## Guide to Understanding chmod

### Introduction

File access permissions and security are at the heart of *nix-based operating systems. File objects can belong to users and/or groups, and at times they need to be shared with various combinations of those two. There are multiple ways in *nix systems to reinforce secure sharing of these

## How to Concatenate String Variables in Bash

### Introduction

Bash utilities make so many tasks simple, but not all tasks have a straightforward command or operator. A very common and usual task in many scripting scenarios is concatenating string variables.

Bash doesn't have a built-in function or command-line utility to concatenate two strings together. However, there are many

## Get Total Size of a Directory in Linux

### Introduction

In Linux, ls -l would list the files and directories in a particular path, with their names, dates, and sizes (disk usage). The first thing you'll notice using that command is that size of directories is always shown as 4096 bytes (or 4,0K if you're using ls -lh

## Writing to Files Using cat Command on Linux

### Introduction

The cat command is a Unix tool used for manipulating and displaying file contents. The command gets its name from the word "concatenate" because it has, among other things, the ability to concatenate files.

## How to Use the grep Command on GNU/Linux

### Introduction

Grep is a powerful, yet very simple tool. By default, it searches through an input and prints a single or multiple lines that contain text matched to a pattern specified in the command call.

Before grep became such a widespread tool for the GNU/Linux system, it used to

## Entering the Linux Universe as a Newbie

By Zoleka and Frank Hofmann

The world of technology is a fascinating one. For an end user who has always used Microsoft Windows or Mac OS X, we thought it would be very easy and we would nail it when it came to learning other operating systems such as Linux

## Automating Version Control Commits

In the previous article I explained how to monitor your data and how to detect changes using tools like Integrit, which is a Host-based Intrusion Detection System (HIDS). Discovering the changes in files is already quite nice, but keeping track of the content and its changes over time is much