Grep Command in Linux (Find Text in Files)
The grep command stands for “global regular expression print”, and it is one of the most powerful and commonly used commands in Linux. grep searches one or more input files …
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How to Grep for Multiple Strings and Patterns
grep is a powerful command-line tool that allows you to searches one or more input files for lines that match a regular expression and writes each matching line to standard …
Regular Expressions in Grep (Regex)
grep is one of the most useful and powerful commands in Linux for text processing. grepsearches one or more input files for lines that match a regular expression and writes …
How to Configuring the Nginx Error and Access Logs
Nginx is an open-source, high-performance HTTP and reverse proxy server responsible for handling the load of some of the largest sites on the Internet. When managing NGINX web servers, one …
Unlink Command in Linux (Remove File)
In this article, we will show you how to remove a file in GNU/Linux systems using the unlinkcommand. Removing File with unlink unlink is a command-line utility for removing a …
Rm Command in Linux (Delete file)
rm is a command-line utility for removing files and directories. It is one of the essential commands that every Linux user should be familiar with. In this guide, we will …
Chmod Command in Linux (File Permissions)
In Linux, access to the files is managed through the file permissions, attributes, and ownership. This ensures that only authorized users and processes can access files and directories. This tutorial …
How to Add Swap Space on Ubuntu 20.04
Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are …
How to Install Node.js and npm on Ubuntu 20.04
Node.js is a cross-platform JavaScript runtime environment built on Chrome’s JavaScript, designed to execute JavaScript code on the server-side. It is generally used to build back-end applications, but it is …
.bashrc vs .bash_profile
If you spend a lot of time on the command line, chances are that you’ll want to customize your shell environment. This can mean creating aliases, adding a new directory …