Many times, we are locked in a situation where we have to search for multiple files with different extensions, this has probably happened to several Linux users especially from within the terminal. There are several…
Virtual consoles are very important features of Linux, and they provide a system user a shell prompt to use the system in a non-graphical setup which you can only use on the physical machine but…
Apache web server is probably the most used web server across platforms including different Linux distributions and Windows. The web server is used to deliver web content and can serve many queries at once. It is often…
One of the Linux’s beauties is that you can control almost everything about it. This gives a system administrator a great control over his system and better utilization of the system resources. While some might have…
In Linux, you can change the maximum amount of open files. You may modify this number by using the ulimit command. It grants you the ability to control the resources available for the shell or…
When running a web server that can be accessed from an open or public network such as Internet, then it is always a good System Administration practice to monitor access to your server. Find Top…
A rough utilization of Linux cat command would be to make a full disk backup or a disk partition backup or cloning of a disk partition by redirecting the command output against the partition of…
In Linux (also UNIX) $PATH is environment variable, used to tell the shell where to look for executable files. $PATH variable provides great flexibility and security to the Linux systems and it is definitely safe to…
More is a *nix command line used to display the contents of a file in a console. The basic usage of more command is to run the command against a file as shown below: Read…
Device or system hostnames are used to easily recognize a machine within a network in a human readable format. It is not much of a surprise, but on Linux system, the hostname can be easily…
If you are a Linux system administrator, time will come when you will need to configure networking on your system. Unlike desktop machines where you can use dynamic IP addresses, on a server infrastructure, you…
This article is a part of our Linux Tricks and Tips series, in this article we will cover some basic usage of cat command (most frequently used command in Linux) and tac (reverse of cat…
When we run certain commands in Unix/Linux to read or edit text from a string or file, we most times try to filter output to a given section of interest. This is where using regular…
A system administrator often needs to run a command repeatedly in a certain periods of time. Often such tasks can be easily completed with simple cron commands. In most of the cases this should work, but…
SSH or Secure Shell in simple terms is a way by which a person can remotely access another user on other system but only in command line i.e. non-GUI mode. In more technical terms, when…