Articles by Deepak Prasad
How to Install Dart on Ubuntu with Hello World Code
This tutorial will guide you through step by step procedure to install Dart on Ubuntu, covering two installation methods (APT and Debian package), verifying the installation, creating a simple Dart program, and the …
How to Install PhotoQt on Ubuntu?
Step by Step instructions to install PhotoQt on Ubuntu environment.
Install Kali Linux on Apple M1 with UTM [100% Working]
Step by step instructions to install Kali Linux on Apple M1 Laptop using UTM
50+ tmux cheat sheet and shortcut commands
In this tutorial I have shared the most used tmux cheatsheet with the list of commands and shortcuts for sessions, windows panes etc in tmux
SQL Date Format Explained with Examples
Different types and formats of SQL date format explained with examples. SQL datetime format syntax, type and examples. sql server date format.
Pandas concat() Function Tutorial
Discover the ultimate guide to mastering pandas concat in Python. Whether you're a beginner or an experienced professional, our comprehensive guide offers actionable tips, best practices, and real-world examples to …
The imperative of attack simulation in modern cybersecurity
Imagine locking every door and window in your house, only to realize there's a hidden passage you've overlooked that's what it's like without the vital
Master Pandas iloc: Definitive Guide to Data Slicing
Explore the comprehensive guide to pandas iloc, the powerful indexer for pandas DataFrames and Series. Learn through examples and FAQs how to perform simple to advanced data manipulations. Perfect for beginners and …
Flask SQLAlchemy [In-Depth Tutorial]
Flask SQLAlchemy is an extension for flask that adds support for SQLAlchemy to flask by adding useful defaults and helpers that simplify basic tasks
4 ways to add row to existing DataFrame in Pandas
how to add row/s to an existing panda dataframe using append(), loc[] and concat() functions. We also included and excluded indices with concat() function.
Python append() vs extend() in list
In this tutorial we will cover multiple examples to understand the difference between list.append() vs list.extend() method. We will [erform a 1 to 1 comparison between these methods.
SOLVED: List unique characters from a string in Python
As we know, that the set data structure only stores the unique elements in it. It does not allow repeated values. So, we can utilize this feature to list
Flask Templates with Jinja2 Explained in Detail
Jinja2 is python based template engine used in flask, it is built in flask, so you do not need to download a separate package to use jinja2 with flask, it is installed with flask.
How to PROPERLY Rename Column in Pandas
In this tutorial we will learn use pandas dataframe.rename() and other methods to rename column in a List, CSV files, Dictionaries or any other type of object in Python.
How to slice dictionary in Python? [SOLVED]
In this article, we will see one of the most asked and confusing problems: slicing a dictionary in Python. Slicing a dictionary means obtaining the subsets of
Pandas Pivot Simplified [In-Depth Tutorial]
Unlock the full potential of data manipulation with our comprehensive guide on Pandas Pivot. Whether you're a beginner or a pro, we cover everything from syntax and parameters to best practices and common pitfalls. …
Working with different Ansible operators
Different ansible operators are arithmetic, logical, comparison and test operator which we can use with ansible playbook.
Working with Ansible conditional statements
Control structures are mainly of the following two types Conditional & Iterative. We will cover when, failed_when, changed_when conditions in playbooks
Deploy Openstack using Kolla Ansible [Step-by-Step]
Step by step instructions to deploy openstack using kolla ansible with screenshots.
How to use different Ansible variables with examples
There are different types of ansible variables such as built-in, host, group, inventory etc. There is a different procedure to access individual ansible variables list
Ansible roles directory structure overview | Beginners Guide
Overview on Ansible Roles Directory structure. Beginners guide to understand Ansible roles. Ansible Tutorial on role Structure with main.yml files
Ansible Block and Rescue Advanced Guide: Thank Me Later
We can use ansible block, rescue and always to perform different kinds of error handling where with the rescue block we can perform cleanup action
Steps to Create Python Web App | Python Flask Example
life cycle of creating a python web app that allows user to create, edit and delete blog posts. We used flask for the back-end, jinja2 engine that comes with flask and sqlite3 as a database for our python web app
Getting started with CGO using Visual Studio Code
Getting started with cgo language. How to use it with Visual Studio Code. Calling C code with GO or calling GO code with C. Create Hello World cgo code.
Solved: Error populating transaction, retrying RHEL/CentOS 7/8
How to fix starting package installation process error populating transaction, anaconda is retrying faced during RHEL/CentOS 7/8 installation in Linux
Setup KVM HA Cluster | Pacemaker GUI | RHEL/CentOS 8
Step-by-Step Tutorial to configure KVM HA Cluster using Pacemaker GUI (WEB UI) and CLI tool in RHEL and CentOS 8 Linux. Configure Virtual Floating IP, verify failover
15 virt-install examples | KVM virtualization commands cheatsheet
virt-install examples to create KVM Virtual Machine in Linux. virt-install cheatsheet with virsh to manage the VM. Use location, PXE, custom disks, network with virt-install
How to configure VLAN with bond using kickstart in Linux (CentOS/RHEL 7)
How to configure vlan with bond using kickstart in RHEL/CentOS 7. You can configure using network --vlan or using %post section of kickstart with examples.
Kickstart %pre script examples in RHEL CentOS 7 8
Use kickstart %pre script examples to perform tasks before installing the system. Use --interpreter, --log, chroot and nochroot options with %pre script RHEL/CentOS 7/8
Setup IPv4 UEFI PXE Boot Server Ubuntu 20.04 [cloud-init]
Step by Step instructions to install and setup ipv4 UEFI PXE Boot Server for automated installation of Ubuntu 20.04 using cloud-init configuration file.

