Introduction

In the Linux world, text editors are essential tools for programmers, writers, and anyone working with text-based files. With a plethora of options available, it can be challenging to choose the right one for your needs.

In this article, we’ll explore some of the best Linux text editors renowned for their power, flexibility, and customization options. Whether you’re a seasoned developer or a beginner, there’s an editor here that can elevate your productivity.

Best Linux Text Editors

Visual Studio Code (VS Code)

Originally designed as a code editor, Visual Studio Code (VS Code) is equally proficient as a text editor. It boasts a user-friendly interface, excellent performance, and extensive language support.

VS Code comes with built-in debugging capabilities, a rich set of extensions, and a thriving community. It’s highly customizable, allowing users to personalize their editor with themes, settings, and keybindings.

Whether you’re writing code or crafting prose, VS Code provides a versatile and feature-rich editing experience.

I love it. My Best Linux Text Editors.

Pros

1. User-Friendly Interface: VS Code provides a clean and intuitive user interface, making it easy for users to navigate and understand its features. It offers a visually appealing layout with customizable themes and icons.
2. Extensive Language Support: VS Code supports a vast array of programming languages out of the box, including popular languages like JavaScript, Python, Java, C++, and more. It provides syntax highlighting, auto-completion, and code formatting for improved development productivity.
3. Rich Ecosystem of Extensions: VS Code has a thriving community that develops numerous extensions, which can enhance the editor’s functionality. From linters and debuggers to version control integrations and development environments, you can find extensions to tailor VS Code to your specific needs.
4. Integrated Version Control: VS Code seamlessly integrates with popular version control systems like Git. It provides features like inline diff views, commit history, and branch management, allowing developers to work with version-controlled projects directly within the editor.
5. Integrated Terminal: VS Code comes with an integrated terminal that allows you to run commands, compile code, and perform various tasks without switching to a separate terminal application. It eliminates the need to constantly switch between windows, streamlining your workflow.
6. Intelligent Code Editing Features: VS Code offers intelligent code completion, code snippets, and code refactoring tools. It helps developers write code faster and with fewer errors by suggesting completions, automatically generating code snippets, and providing helpful hints.

Cons

1. Performance with Large Projects: While VS Code performs well in general, it may experience some slowdowns when working with large and complex projects. The editor’s performance can be affected by factors like the number of installed extensions, the size of the codebase, and the available system resources.
2. Memory Consumption: Similar to the performance issue, VS Code’s memory consumption can increase significantly when working on large projects or with many open files and extensions. This can impact the overall system performance, particularly on machines with limited RAM.
3. Steep Learning Curve for Advanced Features: While the basic usage of VS Code is straightforward, some advanced features, configurations, and customizations may require a learning curve. Fully harnessing the power of VS Code and its extensions might take some time and exploration.
4. Limited Collaboration Features: Compared to dedicated collaborative development tools, VS Code’s built-in collaboration features are relatively limited. While it supports real-time collaboration to some extent, it may not provide the same level of collaboration functionality as specialized tools like Visual Studio Live Share.
5. Microsoft Ecosystem Ties: As a product developed by Microsoft, VS Code is inherently tied to the Microsoft ecosystem. While this is not necessarily a drawback for most users, it might be a consideration for individuals who prefer to avoid software from specific vendors or who seek a more platform-agnostic solution.

Vim

Vim, short for “Vi Improved,” is a legendary text editor that has stood the test of time. It offers a unique modal editing approach, allowing users to switch between different modes for various editing tasks.

Vim provides an extensive set of features, including syntax highlighting, split windows, macros, and an incredibly active community that develops plugins to enhance its capabilities.

While it has a steep learning curve, Vim rewards those who invest the time to master its efficient editing commands.

I think Vim is the Best Linux Text editor. I like it.

Pros

• Best for general usage
• Fast and easy navigation using keyboard shortcuts
• Deeply integrated into Linux

Cons

• Has a learning curve for Linux beginners

Emacs

Emacs is another heavyweight contender in the text editing world. Renowned for its extensibility, Emacs allows users to customize virtually every aspect of the editor through its built-in Lisp programming environment.

With Emacs, you can write custom scripts, create keybindings for repetitive tasks, and install a vast array of community-developed packages. It boasts features like syntax highlighting, powerful search and replace, version control integration, and even email and web browsing capabilities.

Sublime Text

While not open source, Sublime Text has gained a significant following due to its polished interface and extensive feature set. It offers a distraction-free writing experience with a responsive user interface.

Sublime Text excels in search and replaces functionality, multi-cursor editing, and a comprehensive plugin ecosystem. It also supports customization through themes and settings.

Although Sublime Text requires a license for continued use, it offers a free evaluation period.

Atom

Developed by GitHub, Atom is an open-source text editor that focuses on flexibility and customization. It comes with a modern and intuitive user interface and supports a wide range of features.

Atom offers smart autocompletion, multiple panes for side-by-side editing, and a built-in package manager for easy plugin installation.

The editor’s true strength lies in its extensibility, as the community has developed numerous plugins and themes to enhance its functionality and appearance.

GNU Nano

If you prefer a simpler and more beginner-friendly text editor, GNU Nano is an excellent choice.

Nano provides a straightforward and intuitive interface, making it accessible to users of all skill levels.

Despite its simplicity, Nano still offers essential features like syntax highlighting, search and replace, and multiple buffers. It’s a great option for quick edits or when you want a lightweight editor that doesn’t overwhelm you with complexity.

Conclusion

The Best Linux Text Editors. When it comes to Linux text editors, there’s no shortage of excellent options. Whether you prefer the power and efficiency of Vim and Emacs, the simplicity of GNU Nano, the polished experience of Sublime Text, the flexibility of Atom, or the versatility of VS Code, you can find a text editor that matches your needs and enhances your productivity.

 I hope will this your helpful. Thank you for reading the DevopsRoles page! Best Linux Text Editors

Introduction

How to master the rpm command in Linux. The RPM (Red Hat Package Manager) command is a powerful tool used in Linux systems for managing software packages.

Whether you are a beginner or an experienced user, understanding how to use RPM effectively can greatly enhance your Linux experience.

In this blog post, we will delve into the RPM command, its functionalities, and various operations such as querying, verifying, installing, updating, and removing RPM packages.

Master the rpm command

The RPM command is a powerful tool for managing packages on Linux systems. Here are some tips for mastering RPM:

1. Learn the basics:

RPM stands for “Red Hat Package Manager” and is used to install, update, and remove software packages on Linux systems. The basic syntax for using RPM is:

The syntax: rpm [options] [package_file(s)]

Some common options include -i (install), -U (upgrade), and -e (erase).

2. Get familiar with package dependencies:

RPM packages can have dependencies on other packages, which means that they require certain software to be installed before they can be installed themselves. You can use the rpm command with the -q option to query installed packages and their dependencies.

For example, to see the dependencies of the “httpd” package, you can run:

rpm -q --requires httpd

3. Use the RPM database:

RPM maintains a database of installed packages, which you can use to query information about packages, verify packages, and more. You can use the rpm command with the -q option to query the RPM database.

For example, to see information about the “httpd” package, you can run:

rpm -q httpd

4. Verify packages:

RPM includes a feature that allows you to verify the integrity of installed packages. You can use the rpm command with the -V option to verify the checksums, permissions, and other attributes of a package.

For example, to verify the integrity of the “httpd” package, you can run:

rpm -V httpd

5. Build your own packages:

RPM includes tools for building your own RPM packages. You can use the rpmbuild command to create RPM packages from source code or other files.

For example, to create an RPM package from a source code directory, you can run:

rpmbuild -bb mypackage.spec

6. Use RPM with package repositories:

Many Linux distributions include package repositories that provide pre-built packages for easy installation. You can use the yum or dnf command (depending on your distribution) to manage package repositories and install packages from them.

For example, to install the “httpd” package from the official CentOS repository, you can run:

yum install httpd

The Basics: Installing, Updating, and Removing RPM Packages

Installing RPM Packages:

Updating RPM Packages:

Removing RPM Packages:

Querying and Verifying RPM Packages

Querying RPM Packages:

To list all installed packages, use the following command:

rpm -qa

To check if a specific package is installed, use the following command:

rpm -q package_name

To display detailed information about a package, use the following command:

rpm -qi package_name

To list the files installed by a package, use the following command:

rpm -ql package_name

To list the files included in an RPM package, use the following command:

rpm -qpl package_name.rpm

Verifying RPM Packages:

To verify all installed packages, use the following command:

rpm -Va

To verify a specific package, use the following command:

rpm -V package_name

To verify the checksums of all files in a package, use the following command:

rpm -Vp package_name.rpm

To verify only the configuration files of a package, use the following command:

rpm -Vc package_name

Exploring More RPM Command Examples

Extracting files from RPM Packages:

The rpm2cpio the command can be used to extract files from an RPM package. Here’s an example:

rpm2cpio package_name.rpm | cpio -idmv

This command extracts all files from the RPM package package_name.rpm to the current directory.

Signing RPM Packages:

The rpm --addsign the command can be used to sign an RPM package with a GPG key. Here’s an example:

rpm --addsign package_name.rpm

This command signs the RPM package package_name.rpm with the default GPG key.

Querying Package Dependencies:

The rpm -qpR the command can be used to query the dependencies of an RPM package file. Here’s an example:

rpm -qpR package_name.rpm

This command lists the dependencies of the RPM package package_name.rpm.

Rebuilding RPM Packages:

The rpmbuild the command can be used to rebuild an RPM package from source code or other files. Here’s an example:

rpmbuild -ba mypackage.spec

This command rebuilds the RPM package using the mypackage.spec file as the package specification.

Using RPM with Yum/DNF:

The yum or dnf command (depending on your distribution) can be used to manage package repositories and install packages from them. Here are some examples:

yum install package_name
dnf install package_name

Conclusion

Mastering the RPM command is an essential skill for any Linux user. With the ability to query, verify, install, update, and remove RPM packages, you can efficiently manage software on your system. I hope will this your helpful. Thank you for reading the DevopsRoles page!

Introduction

In this tutorial, you’ll learn how to password protect files on Linux to ensure they remain secure from unauthorized access. Various methods are available for this purpose, each providing different levels of security. Here are a few techniques to help you safeguard your files and folders with strong passwords.

Using tools like zip and gpg, you can encrypt your files effectively. zip allows you to compress and password protect files, while gpg offers robust encryption options. Both methods are straightforward and enhance the security of your sensitive data on Linux systems.

How to Password Protect Files on Linux

Encrypt a File with GnuPG

I use gpg command to encrypt a file. GnuPG is a free Linux program that supports multiple encryptions for file encryption.

1. Open the terminal

2. Run the following command line to encrypt your file.

gpg -c your_file

GnuPG will create an encrypted file with .gpg extension in your current working folder.

The result is the picture below:

To access it, you’ll need to decrypt it. For this, run the following command

gpg your_file.gpg

The result is the picture below:

other encryption algorithms, first, check the supported ones by running:

For example, you specify the desired algorithm as a command below

gpg -c --cipher-algo algorithm_name your_file

using the zip command to Encrypt a File

the zip command is another CLI utility that password-protect files on Linux. it is pre-installed on all Linux distros.

zip --password your_password archive_file.zip file1 file2

you replace your_passowrd with the password you want to use to encrypt the archive.

Unzip the archive and enter your password. you can run the command below:

unzip archive_file.zip

Encrypt a File Using mcrypt

list out all the supported encryption algorithms

mcrypt --list

encrypt filename

mcrypt -a algorithm_name filename

If you wish to open this file, you’ll need to decrypt it as the command below:

mcrypt -d filename.nc

Conclusion

By following this tutorial, you now know how to password protect files on Linux, enhancing your data security. Always choose a strong, unique password when prompted and consider using a password manager to keep your passwords safe and easily accessible. Implementing these methods helps prevent unauthorized access and ensures your sensitive information remains protected. Thank you for reading the DevopsRoles page and I hope you found this information helpful. Stay secure!

Introduction

This tutorial covers how to manage and monitor swap on Linux, including how to determine the amount of swap space available and how much is currently in use.

Swap space plays an important role in system performance, so it’s crucial to understand how to manage it effectively.

How much swap on Linux do you need?

The recommendation is to swap the space used to double your RAM. If your system has a lot of memory, you may never need to use swap space.

RAM         Swap        Swap (with hibernation)
256MB       256MB       512MB
512MB       512MB       1GB
1GB         1GB         2GB
2GB         1GB         3GB
3GB         2GB         5GB
4GB         2GB         6GB
6GB         2GB         8GB
8GB         3GB         11GB
12GB        3GB         15GB
16GB        4GB         20GB
24GB        5GB         29GB
32GB        6GB         38GB
64GB        8GB         72GB

To determine if your system can hibernate

$ which pm-hibernate

You can test it by running this command:

$ sudo pm-hibernate

View the amount of swap space on Linux

$ swapon --show
$ free -m 
$ sar -S 1 3
$ lsblk

The output terminal is as follows

[vagrant@localhost ~]$ swapon --show
NAME      TYPE SIZE USED PRIO
/swapfile file   2G   9M   -2
[vagrant@localhost ~]$ free -m
              total        used        free      shared  buff/cache   available
Mem:            486         146          93           2         247         325
Swap:          2047           9        2038
[vagrant@localhost ~]$ sar -S 1 3
Linux 3.10.0-1127.el7.x86_64 (localhost.localdomain)    09/13/2021      _x86_64_        (1 CPU)

09:51:08 PM kbswpfree kbswpused  %swpused  kbswpcad   %swpcad
09:51:09 PM   2087884      9264      0.44       416      4.49
09:51:10 PM   2087884      9264      0.44       416      4.49
09:51:11 PM   2087884      9264      0.44       416      4.49
Average:      2087884      9264      0.44       416      4.49
[vagrant@localhost ~]$ lsblk
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda      8:0    0  40G  0 disk
└─sda1   8:1    0  40G  0 part /
[vagrant@localhost ~]$

Creating a swap file

$ sudo dd if=/dev/zero of=/swapfile bs=1M count=8192
$ sudo chmod 600 /swapfile
$ sudo mkswap /swapfile
$ sudo swapon -a
$ swapon --show

Turn to swap off.

$ sudo swapoff -v /swapfile

# The output terminal
[vagrant@localhost ~]$ sudo swapoff -v /swapfile
swapoff /swapfile
[vagrant@localhost ~]$

Turn to swap on Linux.

$ sudo swapon -v /swapfile
$ swapon --show

Conclusion

You have a Managing and monitoring swap on Linux. I hope will this your helpful. Thank you for reading the DevopsRoles page!