Simple bash Script to get the list of files and directories inside the specified path Sometimes we want to get the list of files and directories recursively, but it is tedious to navigate each directory to check all the files. Here are the simple commands which will help you to check all the files and…
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…
Here is list of New features in PHP 5.6 1) Variadic functions via …2) Argument unpacking via …3) Changes in File uploads4) Importing namespace functions5) Exponentiation Operator in PHP (**) 1) Variadic functions via … Currently variadic functions are implemented by fetching the function arguments using func_get_args() . If we want to pass random number…
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…
As we know DevOPS is a newly emerging term in IT field, which is nothing but a software development practice that emphasizes the collaboration and communication of both software developers and information-technology (IT) operation professionals. It helps us to delivering software product faster and lowering the failure rate of releases. There are lots of tools…
How to Run a Linux Script During Reboot or Startup I come across one use case where I need to run a Linux script during reboot or startup of the system. To handle this use-case I have created new script in /etc/init.d/myscript. Lets consider the below example script. /etc/init.d/myscript #! /bin/sh ### BEGIN INIT INFO #…
What is the ASCII Code? ASCII (ASS-kee) abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters. More details you can find out in…
Check if array contains value in shell script Here is simple bash script to check if array contains value . We can iterate over array and check if value is exist or not but we can also check in if condition if array contains value or not. Use this solution, If array value doesn’t contains…
I know this is very simple things to do and specially if you are an expert developer 🙂 . But it will be better if we have all the steps in a single place. So here is the step by step guideline to set JAVA_HOME path in Windows 7 / Windows 8 / Windows 10….
I have installed Centos 7 in Vmware WorkStation. I tried to install few new packages using yum install. However, I was getting error “Could not resolve host: mirrorlist.centos.org Centos 7″ Possible Reason for the issue and Resolution. 1. Ethernet Interface is disabled. Check ethernet status, if its disconnected then you need to enable it. Steps…
