What is grep? The grep utility that we will be getting a hold of today is a Unix tool that belongs to the same family as the egrep and fgrep utilities. These are all Unix tools designed for performing the
Use of the grep Command in Linux
8 Common Uses of the Linux Touch Command
The Linux touch command can be used for much more than simply creating an empty file on Linux. You can use it to change the timestamp of existing files including their access as well as modification times. This article presents
Linux: Find Out Which Port Number a Process is Listening on
As Linux users, we sometimes need to know which port number a particular process is listening upon. All ports are associated with a process ID or service in an OS. So how do we find that port? This article presents
How to Password Protect a File in Vim Editor
The Vim editor can be called a programmer’s text editor. It is upwards compatible with the Vi editor and can be used to write and edit plain files and programs. Along with the many enhancements it provides, Vim Editor can
Four Web Browsers for the Linux Command Line
Remember the days when the web was as simple as searchable text. The terminals and low powered personal computers were enough to access the text-based web over snail-paced internet connections. Of course, people then used the command-line web browsers to
5 Commands to Check Swap space in Linux
When the physical memory or RAM on our system is full, we end to make use of the swap space on our systems. In this process, the inactive pages of our memory are moved to the swap space, creating more
How to Customize your Ubuntu Terminal Prompt
Your Ubuntu system uses as the default Terminal application bash or dash. You type your commands against a default prompt that usually lists your username, hostname and current directory in some predefined color theme. The bash provides many customization options
How to Install Opera Browser on Ubuntu 18.04 LTS
Although there are a lot of newer and faster web browsers available these days, you might still prefer installing and using one of the oldest and stable web browsers currently available. The general opinion is that it is a slower
How to Manually Mount/UnMount a USB Device on Ubuntu
When you plug in a USB drive on our system, it usually mounts automatically; creating a directory by your username under the media folder. You can also access it through the file manager running on your system. Unfortunately, this is
How to Take Screenshots in Ubuntu with a Time Delay
Taking timed screenshots is very important for a Linux user, especially when you want to capture your screen or window in a specific state or time. For example, if you want to capture how a program behaves after n seconds,
