ZSH is a powerful alternative to Linux Bash offering a lot of features like auto-completion (I like this so much), plugins and even themes.
The idea here is to empower your Linux console, both the command line like, f.i. new aliases out-of-the-box and make the look and feel even better.
I've chosen Oh My ZSH since years, let's see how to install it followed by a discovering some features.
This is a very common source of problems using .env files: you've two or more different .env file like .env and .env.example.
You're a programmer and coding a new amazing feature. You're adding one or more new environment variables to your local .env file and everything is working fine on your computer.
A colleague copy the source code from a versioning system like Github/GitLab or, second scenario, someone will deploy the feature on a server and your feature is broken.
Why? Because the variable(s) you've added have been added in your local .env file, on your computer only.
As you know, you have to create the variables in the .env.example file too but let's be honest, nobody thinks about it.
When deploying a project on servers, we need to pay particular attention to the .env file. This file is crucial and will determine whether our application works properly (or crashes).
The normal way of doing things is to run a git clone command to get the latest version of the application from a repository (branch test for a test server, dev for an acceptance server, main for a production server).
Once cloned, the next command will be to create the .env file and it's done using cp .env.example .env.
And that's where the obligation to be meticulous begins.
Today, I was facing (once more) with the following need: I need to update a setting in a text file but if the variable is not yet present, I need to add it.
So, in short, I need to make a search and replace or insert new line.
Using sed it's quite easy to automate the search & replace but how to append?
jq is a powerful utility for Linux allowing manipulating JSON data from the command line and can be integrated into shell scripts.
Using jq you can beautify JSON output but also filter it like f.i. showing only a given node.
xmlstarlet is a powerful utility for Linux allowing manipulating XML data from the command line and can be integrated into shell scripts.
Using xmlstarlet you can beautify XML output but also filter it like f.i. showing only a given node.