Shell script to pass multiple arguments with options This tutorial will help you to pass multiple arguments in a more organized manner. I have used two arguments “t” and “d” here. The first argument “t” will accept task value and based on the task value you can perform the respective action for a particular date(“d”)….
Install Elasticsearch using Repositories You can easily install Elasticsearch using APT and YUM repository – Install Elasticsearch Using APT repository – Install Elasticsearch Using Yum repository Install Elasticsearch 5.0 on Debian: Step 1: Download and Install Elasticsearch Public signin key wget -qO – https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add – Step 2: Installation using APT Repository…
This article is going to step by step set-up and Configure WAMP Server in Windows 7 & 8 machine. Perquisites:- FOR WAMP 32bit :- Microsoft Visual C++ 2010 SP1 Redistributable Package (x86) [Download Link ] If you are using WampServer 2.4 or 2.5 Microsoft Visual C++ 2012 [ Download Link ] …
Distributed and Highly Available Search Engine. Multi Tenant with Multi Types
Here are the couple of methods to check if a string contains a substring in bash shell script. Methods to check if string contains a substring in Bash Method 1: Use regular expression Output: Method 2: Use wildcard (*) to check the string Output:
What is the Purpose of a null_resource in Terraform? A null_resource is a special Terraform resource that does not manage any real cloud infrastructure. Instead, it acts as a placeholder to trigger side effects — like running scripts or commands — at the right point in the Terraform lifecycle. When to Use null_resource Use it…
Helm Charts — And Why Raw YAML Gets Painful Fast Start With the Problem Imagine you’re deploying a simple web app to Kubernetes. You write a deployment.yaml, a service.yaml, maybe an ingress.yaml and a configmap.yaml. That’s already 4 files just for one app. Now imagine doing that for 10 microservices, across 3 environments (dev, staging,…
Changes in PHP ternary operator since PHP 5.3 Till PHP 5.2 $varName = ($cond) ? $cond : ‘false’; From PHP 5.3 $varName = ($cond) ? : ‘false’; No need to write condition for true. It will automatically taken $cond in true. Reference URL :- http://www.php.net/manual/en/language.operators.comparison.php#language.operators.comparison.ternary
$this refers to the current object of the class and self refers to the current class itself.$this can not be used inside static function whereas self can be used inside static function. When we need to access static function and reference static member variable then we can’t access through $this because a property declared as…
Kubernetes Liveness & Readiness Probes The Core Idea Imagine you have a restaurant. The health inspector checks if the kitchen is safe to operate at all — that’s a Liveness Probe. The host at the door checks if the kitchen is ready to accept new orders right now — that’s a Readiness Probe. Kubernetes uses…
