tvvignesh

/**
 * Flatten an Array of Arbitrarily nested Arrays of Integers
 * into a Flat Array of Integers.
 * @param  {Array} intArray - Array of Numbers
 * @param  {Array} flatArray  - Flatten array (recursive)
 * @return {Array}                - Array of Numbers
 * 
 * Link to JSBin - http://jsbin.com/dofuneb/edit?js,output
 */
var flatten = function(intArray, flatArray) {

tvvignesh

Websites to refer

• https://www.confluent.io/blog/data-dichotomy-rethinking-the-way-we-treat-data-and-services/

• http://slides.com/stefankutko/nodejs-microservices-event-sourcing-cqrs

• https://dzone.com/articles/microservices-with-kubernetes-and-docker

• https://dzone.com/articles/building-microservices-using

tvvignesh

/*
Instructions to run:
node program.js grep "search term" file1.xyz file2.xyz /path/to/file/file3.xyz
*/

var fileList = [];
var countObj = {};

console.log(process.argv);

tvvignesh

Remove existing GPG Secret Keys

gpg --delete-secret-keys "Vignesh T.V."

Remove existing GPG Public Keys

gpg --delete-keys "Vignesh T.V."

Generate GPG Keys

gpg --gen-key

Export GPG Public Key

tvvignesh

SEMODULE DISABLE IN CentOS

sudo cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx

sudo semodule -i mynginx.pp

ALLOW HTTP & HTTPS TRAFFIC IN FIREWALL

sudo systemctl stop firewalld

tvvignesh

Kubernetes

Install Virtualbox - https://www.virtualbox.org/wiki/Linux_Downloads

Install Kubectl - https://kubernetes.io/docs/tasks/tools/install-kubectl/

Install Minikube - https://kubernetes.io/docs/tasks/tools/install-minikube/

Set ENV - https://stackoverflow.com/questions/42564058/how-to-use-local-docker-images-with-minikube

tvvignesh

Webconfig file when using IIS Node - https://github.com/Azure/iisnode

<configuration>
  <system.webServer>

    <!-- indicates that the hello.js file is a node.js application 
    to be handled by the iisnode module -->

 

tvvignesh

Time series data

1. https://www.analyticsvidhya.com/blog/2016/02/time-series-forecasting-codes-python/
2. http://scikit-learn.org/stable/modules/generated/sklearn.model_selection.TimeSeriesSplit.html
3. https://machinelearningmastery.com/time-series-forecasting-methods-in-python-cheat-sheet/
4. https://www.analyticsvidhya.com/blog/2018/02/time-series-forecasting-methods/
5. https://www.youtube.com/watch?v=e8Yw4alG16Q
6. https://medium.com/@josemarcialportilla/using-python-and-auto-arima-to-forecast-seasonal-time-series-90877adff03c
7. https://www.digitalocean.com/community/tutorials/a-guide-to-time-series-forecasting-with-arima-in-python-3
8. https://www.sciencedirect.com/science/article/pii/S0925231217309864
9. http://publications.lib.chalmers.se/records/fulltext/242944/242944.pdf

tvvignesh

API Interfacing

1. http://flask.pocoo.org/
2. https://stackoverflow.com/questions/17301938/making-a-request-to-a-restful-api-using-python

Running Python with Flask, Gunicorn and Nginx

1. https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-gunicorn-and-nginx-on-ubuntu-14-04

tvvignesh

Convert PPTX to PDF using libreoffice

libreoffice --headless --invisible --convert-to pdf *.pptx

Combine multiple PDFs to form a single PDF with layout options

pdfjam *.pdf --nup 3x4 --landscape --outfile output.pdf