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I often need to code some way to have multiple pages rendered in the same location : think about a configuration panel with several sub panels.

So, a few days ago, I saw a video showing a password creation form. Each time the user types anything, there is an instant validation with icons indicating which constraint is fulfilled.

This is a list of useful ressources you can access freely on the web, to learn Go : Go Playground : Try Go without installing nothing on your computer.

This article will show you how to setup a new Svelte project to develop a custom tag, using esbuild, with live reloading.

I want to code a simple tags input component in Svelte like the animation above. An input text where I can type words.

During a discussion on a Discord channel, a message puzzled me: Go is not an object oriented language. I knew Go didn’t have an inheritance mechanism.

On my workstation, I manage both amd64 and i386 architecture. When I try to install Microsoft Edge on my Linux, after the apt udpate, I have this message:

We can customize Firefox interface to hide the tabs bar : First, we have to tell Firefox that we want to customize its interface.

Would it be possible to embed a database to avoid managing a MySQL or Postgres instance? Even better, can this database be queried in SQL?

In my previous post, I used Nebula to setup a secured network between 2 virtual machines. This time, I’ll try to make a MySQL client and server communicate through a Nebula tunnel.

Is it possible to use the public network, namely Internet, to make 2 machines communicate securely ? And if possible something easier to install and configure than OpenVpn ?

You can change the device link so your webcam will be always accessible at the same location /dev/video99. You can also persist some settings via the v4l-ctl command.

This days, with 4K monitors, the linux console is unreadable : the font is too small. So how can we scale the font size in the console after boot ?

How to apply new commits in your forked repo from the parent (upstream) repo ?

How to show a big clock on Linux without using an application or having a browser opened on time.is ?

To change the name of ownCloud main folder, there is a little trick you can do on Linux (may work as well on other platforms).

Define a repo somewhere in your file system with a bare init mkdir -p /somewhere/repo/test_project cd /somewhere/repo/test_project git init --bare Now create a local folder for your work with init only

You can change the mysql prompt client so you know where you are. Very usefull when you manage a lot of mysql databases and you forget which one :-)

If you use a tiled window manager like me, Suckless DWM for example, and have Firefox as your browser, you may be interested by not showing the tabs.

Install LTS Hardware Enablement Stack sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04 Clean sudo apt purge --autoremove Reboot to load new kernel

How to flash any iso (think about your favorite distro) on an USB key without graphical IHM ? sudo dd if=/path/to/image.

Using Udev, you can change the wifi interface name.

First, you need to get the mac address.

On my Linux, just after upgrading Go to version 1.9, I lost autompletion functionality in VS Code. :vscode_completion_not_working This tip did not work for me.

To reduce docker container size we can built the image from scratch instead of using bloated images, like debian or worse ubuntu.

How to configure a Debian based Linux distribution to share a folder with anyone on the network, with read and write access ?

As ‘man convert’ states : The convert program is a member of the ImageMagick suite of tools. Use it to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.

I tried to resync a slave MySQL after it disconnected from the master. But the binary log was already deleted on master, so the only solution was to restore from the last backup.

Red is a next-gen programming language, strongly inspired by REBOL.

Consul is a critical infrastructure service for organizations that rely on it for service discovery, key/value storage, and health checks.

Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications, whether on laptops, data center VMs, or the cloud.

To import a local CSV file into MySQL, use the syntax below : LOAD DATA LOW_PRIORITY LOCAL INFILE '/path/tofile.csv' INTO TABLE database.

To export a mysql results in CSV format, use the syntax below : SELECT field1, field2, ... FROM table WHERE condition INTO OUTFILE '/tmp/toto.

By default, in Cheyenne, the header size limit for a post request is 102'400. If you want to ajust this limit you can define the post-mem-limit parameter in the global context or in a specific webapp.

Get rid of graphic boot on Linux with a few modifications in grub configuration : # edit your grub config sudo vi /etc/default/grub # remove splash, quiet, .

Git log in colors.

Default mysql client behaviour is to show column names and grid when returning results but how to get rid of this decorations ?

Just in case you absolutely have to insert a date in MySQL that does’nt exist, eg 2014-02-30, you can run MySQL server in a special mode that authorizes such dates :

byzanz-record -c - duration=60 - x=80 - y=310 - width=800 - height=600 out.gif

A few days ago, I started to have a very disturbing “Not permitted” message when trying to mount a usb disk from Thunar .

In Windows, create a certificate via Start > All Programs > Microsoft Office > Microsoft Office Tools > Digital Certificate for VBA Projects In Microsoft Outlook, open the VB editor and copy/paste the code below Replace your@email.

A few months ago, I read an article about brain training by learning a new language : very interesting story about William Alexander who failed to learn french but strenghten his brain trying to.

Key shortcuts

Assume we have access to the wifi at work and at home. How can I configure my laptop to automatically connect to the right network without using a graphical network manager ?

Add in your ~/.ssh/config : Host * ServerAliveInterval 240 src = superuser.com

As of Git v1.7.0, you can delete a remote branch using : git push origin --delete <branchName> And you can do exactly the same with a tag

Put in your ~/.zshrc : PS1=$'%U${(r:$COLUMNS:: :)}%u'$PS1 _src = superuser.com _

On Ubuntu/Debian distro, edit the /etc/wordpress/htaccess and add this lines : php_value upload_max_filesize 50M php_value post_max_size 50M php_value memory_limit 50M

For example, to substitute foo with bar for f in `grep -lR foo`; do echo -n ">> $f"; sed 's/foo/bar/g' $f > $f.

The fastest and more efficient way to batch multiple files encoding conversion : vim +"argdo se fileencoding=utf-8 | w | bnext" +"q" ` find .

If you have some files that you need to have in your repo but don’t need to have updates, git allows it :

When I switched to ZSH, and let BASH behind, I missed some behaviour : one of them was the ability to quit my terminal while some jobs are still alive.

To code with php, no need to install apache and other dependencies, especially as php has a builtin web server.

Add in ~/.config/gtk-3.0/settings.ini

Side note : Microsoft has dropped support for IE8 last april 2014 :-( There are still some clients that want their webapp to work perfectly on IE8.

With the Go http server. (By the way, I love opensource community !) Try the demo ! See the code !

DWM is my tiled window manager. It’s fast, flexible and fun. My linux desktop is up and running after a few seconds… (ok, thanks also to the ssd :-) ).

src = NASA

Forget large background image for your web site. Now, comes video time. So you want to put a nice video as background of your site but don’t know how to do ?

2048 : a very famous game where you have to slide the numbered tiles to join same numbers, and cumulate them to obtain 2048 !