By default, all commands executed by Bash on the command line are stored in history buffer or recorded in a file called ~/.bash_history. This means that a system administrator can view a list of commands…
One of the most important and interesting topics under Linux administration is I/O redirection. This feature of the command line enables you to redirect the input and/or output of commands from and/or to files, or…
Sudoers is the default sudo security policy plugin in Linux, however, experienced system administrators can specify a custom security policy as well as input and output logging plugins. It is driven by the /etc/sudoers file…
In Linux and other Unix-like operating systems, only the root user can run all commands and perform certain critical operations on the system such as install and update, remove packages, create users and groups, modify…
In this article, we will review a number of command line tools that act as filters in Linux. A filter is a program that reads standard input, performs an operation upon it and writes the…
With the thousands of commands/programs available in Linux systems, knowing the type and purpose of a given command as well as its location (absolute path) on the system can be a little challenge for newbies….
Today, Bash is the default shell in most (if not all) modern Linux distributions. However, you may have noticed that the text color in the terminal and the prompt content can be different from one…
I passionately enjoy working with commands as they offer more control over a Linux system than GUIs (Graphical User Interfaces) applications, therefore am always on the lookout to discover or figure out interesting ways and…
Today, Google search is a well known and the most-used search engine on the World Wide Web (WWW), if you want to gather information from millions of servers on the Internet, then it is the…
In this post, we will learn a number of commands for locating the default configuration files for MySQL database server (my.conf), PHP programming language (php.ini) and Apache HTTP server (http.conf), which together with Linux form…
Once you get familiar to using the Linux terminal, you wish to do everything on your system by simply typing commands including sending emails and one of the important aspects of sending emails is attachments….
In this article, we will review a cool and simple way of giving a command screen output a rainbow colors and slowing down its output speed as well for one reason or the other. The…
While learning Linux, it is always the norm for newbies to keep on typing several commands to accomplish a simple task. This is understandable especially when one is just getting accustomed to using the terminal….
In this article, we will explain two, simple command line tips that enable you to only list all today’s files. One of the common problems Linux users encounter on the command line is locating files…
There are plenty of network monitoring tools you can find in the Linux ecosystem, that can generate for you a summary of the total number of devices on a network including all their IP addresses…