How to validate date format in shell script There are multiple ways you can validate date format in shell script. You can compare date format with regular expression or you can use inbuilt date command to check given date format is valid or not. I am sharing a simple date command to validate the date…
Here is the simple shell script to rename all files in the folder with increasing number. In below example I am going to rename all jpg image with increasing number. #!/bin/bash a=1 for i in *.jpg; do new=$(printf “%04d.jpg” “$a”) mv — “$i” “$new” let a=a+1 done Output: 0001.jpg 0002.jpg 0003.jpg 0004.jpg 0005.jpg 0006.jpg 0007.jpg…
An error budget is the agreed-upon amount of unreliability downtime, or failure a system can experience within a specific period before users are noticeably impacted or targets are broken. It is a core concept in Site Reliability Engineering (SRE) used to balance the speed of shipping new features with system stability. 📊 How It Works…
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…
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”)….
Loop through a date range in Shell Script Here is a simple shell script which accept two date value as argument and perform desired action for date value in loop.daterange.sh #!/usr/bin/bash start=$1 end=$2 start=$(date -d $start +%Y%m%d) end=$(date -d $end +%Y%m%d) while [[ $start -le $end ]] do echo $start start=$(date -d”$start + 1 day”…
Create empty file in ansible Ansible Task to Create new file on remote machine, Validate and Copy Content on Remote Machine In this article I have covered create a new file on remote machine from ansible playbook, Write contend on new file from ansible , Copy file on remote machine using ansible playbook. We can use file,…
Documents in Elasticsearch are always immutable we cannot replace or change them directly. If we require updating document in Elasticsearch then we need to reindex or replace it. We can change an existing document by using Index API as well. Elasticsearch delete the old document automatically and add a new document internally. Updating Document in…
As Reliance Jio 4G launched cheapest data and voice calls plans with several benefits to the Mobile users. Everyone wants to take benefits of these plan. You have two options to take advantages of Reliance Jio 4G , Buy new Reliance Jio 4G sim or Port you number to Reliance Jio 4G using Mobile Number…
If you working as a Linux administrator or as a DevOps engineer then you might get a use case where you need to run multiple bash scripts in parallel without waiting to finish execution of previous script. Let me show you possible ways to achieve this in bash script For e.g I have 5 bash…
