DevOps

Set up Jupyter Notebook in VS Code for Data Science

Project Jupyter is a non-profit, 100% open-source project. It develops software and web applications to support interactive data science and…

Kubernetes Command Line Reference (Cheatsheet)

Creating Objects Create resource: $ kubectl apply -f ./<file_name>.yaml Create from multiple files: $ kubectl apply -f ./<file_name_1>.yaml -f ./<file_name_2>.yaml…

How to write Bubble sort in Bash

Bubble sort is a simple algorithm that basically bubbles up the elements of the array. This means that it traverses…

Strings and Variables in Python

Strings A string is simply a series of characters. Anything inside quotes is considered a string in Python,and you can…

10 Sed (Stream Editor) Command Examples

Sed is a stream editor in a UNIX-like operating system that is used for filtering and transforming text. Sed is…

Puppet Server’s Resources Cheat Sheet with Examples

Puppet is an open-source configuration management tool from Puppet Labs. Puppet Resources are the building blocks that puppet uses to…

Backtick (`) symbol in Linux Shell Scripting

One of the most useful features of shell scripts is the lowly back quote character, usually called the backtick (`)…

How to Start, Stop and Restart Zimbra Service

The Zimbra server contains Postfix, MySQL, OpenLDAP, ClamAV, and Spam-Assassin, Calendar, and various other features. Zimbra provides a paid option…

How to Find and Delete Empty Directories and Files in Linux

1. Find empty directories in the current directory using find -empty: $ find . -type d -empty 2. Use the…

“Error: Could Not Find A Ready Tiller Pod” – helm error

The Problem Getting "Error: could not find a ready tiller pod" error when trying various helm commands. > helm version…