As a Linux user, or as a server administrator, you need to regularly understand how long your servers have been up and running to understand their patch levels. What that means is that if a major update was recently rolled…
The root user enjoys the privilege of being able to access just about anything in the Linux system. While disabling root login is an authentication strategy that might boost security, people still debate whether it’s truly effective or not. Don’t…
The tail command in Linux displays the last few lines/blocks of any file, the number of lines/blocks being dependent on the options passed when using the command. Also read: The uptime Command in Linux The Linux tail command default output…
NOTE: Before reading this article, I would like to inform you that the ifconfig command is outdated, and is not recommended anymore. The ip command is the current replacement for the ifconfig command. Even though this program may be outdated,…
With the introduction of Ubuntu 16.04 LTS, the “apt” command started being noticed by bloggers and average Linux users. Every Ubuntu-based tutorial that popped up on the internet used apt install instead of what we were normally used to seeing,…
The touch command in Linux is used to update timestamps on files, namely, the access and modification time for any file(s). This is basically ‘touching’ the file, and hence the name of the command. This command has different options through…
There are multiple ways of setting hostname in Debian or Linux system. You can temporarily change the hostname, or permanently apply the changes to a system. Let’s go over these methods. Setting hostname temporarily Let’s start with the temporary and…
The cat and the more commands are used to display the contents of a file or files on the terminal in Linux. Both commands have similar functionality but are still different. How are they similar as well as different at…
The Debian repository already has a VirtualBox package for us to directly install on our systems. But it’s a version older than the latest official release. As of this writing, the version available in the apt sources is 5.2, while…
The mv command in Linux allows you to move a file from one location to another. Also, we don’t really have a rename command in Linux. Instead, we move files from one name to another. This is facilitated by the…