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10 posts tagged with "linux"

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Ubuntu - Install from scratch

5 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Ubuntu - Install from scratch

Today is a public holiday in Belgium, so I'm finally taking the time to install Ubuntu on my old PC.

The idea is to remove Windows and install Ubuntu Desktop 24.04 on the computer.

Let's go, you'll see, it's easy.

Introduction to fzf - Fuzzy Finder

5 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Introduction to fzf - Fuzzy Finder

As you probably know, CTRL+R in the console will give you access to your HISTORY i.e. you'll retrieve the list of the commands you previously typed in your console. Just like using UP or DOWN keys but with a very small search engine.

And it makes the job but, honestly, this is really basic, no?

The Fuzzy Finder (aka fzf) command line utility will explode the possibilities linked to searching in the history but, in reality, this is just one of the consequences of installing fzf, which is so much more powerful.

Let's have a look.

Autosuggestions in the console using ZSH

2 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Autosuggestions in the console using ZSH

ZSH supports plugin and one of the wonders is the zsh-autosuggestions one.

That one will suggests commands as you type based on your previous history and completions.

The more you use your Linux console, the more valuable this plugin will prove to be, as it will learn from you; it will know which commands you have already executed and will suggest them as soon as you start typing the first characters. Finish thinking "Gee, what were the parameters I used for ...".

Syntax highlighting in the console using ZSH

One min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Syntax highlighting in the console using ZSH

zsh-syntax-highlighting is another gem for ZSH.

As you type, you'll be able to tell from the colors that, for example, something isn't quite right.

If you type head followed by a space, ZSH will display this word in green: this command exists and is valid. If you type heat there, the word will appear in red: this command does not exist.

It sounds simple, but it's so practical.

How to install Oh-My-ZSH

5 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

How to install Oh-My-ZSH

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.

Compare environment files in the Linux console

4 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Compare environment files in the Linux console

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.

Boum! Your feature is buggy.

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.

Batch edit of environment file

4 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Batch edit of environment file

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.

Search and replace (or add) using sed

3 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

Search and replace (or add) using sed

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?

The jq utility for Linux

3 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

The jq utility for Linux

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.

The xmlstarlet utility for Linux

3 min read
Christophe
Markdown, WSL and Docker lover ~ PHP developer ~ Insatiable curious.

The xmlstarlet utility for Linux

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.