ESLINT how to setup and use

To use eslint on your site, probably the best idea is to install it locally and do it in drupal core dir as that is location of ESLINT config files that ship by default with drupal core (.eslintrc.json and .eslintignore). So you should go to drupal core directory and then install it via yarn:

Advenced History command in linux / Mac OSx

Recently I started using history command a lot. Just to check what I have done. One thing missing by default is timestamp, I want to know when I did something so to do that you can do this 

Deploying big release branches, steps to take (dry run merge and checkup)

If you have big sprint with big amount of task and put all of that into feature branch that you need to deploy (merge to master) then it is good to have one big final checkup before doing that. So what I do is this, go to your master branch and either make one temp branch from it like "master_temp" or do it directly there. For extra caution I use temp branch.

Fetch your mysql configuration

You want to check some environment variables values for your current setup. Log into mysql and type something like

Testing drupal site as authenticated user

In order to generate authenticated requests using curl we can use the session cookie from a session in our browser. How to find that? Sign in to your site in your browser. Then find the cookie that starts with either SESS, or SSESS followed by a random string.