How to Use Grep Command to Search Files in Linux
The grep command which stands for global regular expression print is one of the most powerful and commonly used commands in Linux. Grep searches one or more input files for lines that match a given pattern and writes each matching line to standard output.
How to Use Dig Command to Query DNS in Linux
Dig (Domain Information Groper) is a powerful command-line tool for querying DNS name servers. With the dig command you can query information about various DNS records including host addresses, mail exchanges and name servers.
Linux Cat Command
The cat command is one of the most widely used command in Linux. The name of the cat command comes from its functionality to concatenate files. It can read and concatenate files, writing their contents to the standard output.
How to Remove Files and Directories Using Linux Command Line
In this tutorial, we will show you how to use the rm command to remove files and directories through examples and explanations of the most common rm options.