Chattr is a UNIX command-line program that’s pre-shipped in most Linux distributions. The role of this command is to allow the admin user to set file attributes that impose restrictions on files. There are a handful of file attributes for different roles, such as the “+i” attribute, which prevents a file from being renamed, deleted, or modified, and the “+a” attribute, which only allows appending new content, as well as a few others that will be discussed later in this tutori

GNU/Linux is a robust operating system known for its flexibility and power. Yet, typing lengthy commands repeatedly can become...

Introduction Ever wondered how a Linux terminal magically finds commands like ls or cd without explicit instructions on their exact...

In Unix and Linux systems, the $SHELL environment variable indicates the parent shell that initiated your current session. This can be...

The cut command in Linux is a powerful text-processing utility used to extract specific sections from each line of a file or from piped...

Creating users in a Linux system is a fundamental task required by system administrators and anyone managing a Linux server or a desktop...