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The friendly interactive shell (fish) is a Unix shell that attempts to be more interactive and user-friendly than those with a longer history or those formulated as function-compatible replacements for the aforementioned. The design goal of fish is to give the user a rich set of powerful features in a …


GDB (GNU Project debugger) allows you to see what is going on `inside' another program while it executes -- or what another program was doing at the moment it crashed.

Start your program, specifying anything that might affect its behavior; - Make your program stop on specified conditions; - Examine what has happened …


The leading open source automation server, Jenkins provides hundreds of plugins to support building, deploying and automating any project.


sudo apt install default-jre default-jdk apt-transport-https wget gnupg
wget -q -O - | sudo apt-key add -
sudo apt update
sudo apt install jenkins

Config …

Let's Encrypt

Let’s Encrypt is a free, automated, and open certificate authority (CA), run for the public’s benefit. It is a service provided by the Internet Security Research Group (ISRG).


sudo apt install certbot python-certbot-nginx 


sudo certbot --nginx


sudo certbot renew --dry-run

Let's Encrypt


VFC (Valente Fazedor de Chuva in portuguese, Brave Rainmaker in english) is a motorcycle challenge where the rider goes arround all the cities in his state, in my case 102 cities in Maceió - AL, Brazil.


  • Honda CB 500F 2018
  • 102 cities
  • 4466 km
  • 13 days



X.Org Server is the free and open-source implementation of the display server for the X Window System stewarded by the X.Org Foundation.


sudo apt install xorg-server
xorg -configure
sudo nvim /etc/X11/xorg.conf
Section "ServerLayout"
    Identifier     " Configured"
    Screen      0  "Screen0" 0 0
    Screen …


Bumblebee aims to provide support for NVIDIA Optimus laptops for GNU/Linux distributions. Using Bumblebee, you can use your NVIDIA card for rendering graphics which will be displayed using the Intel card.


apt install bumblebee primus
optirun glxgears -info
primusrun vim
optirun steam
sudo nvim /etc/bumblebee/xorg …


Steam is a digital distribution platform developed by Valve Corporation for purchasing and playing video games. Steam offers digital rights management (DRM), matchmaking servers, video streaming, and social networking services. Steam provides the user with installation and automatic updating of games, and community features such as friends lists and groups …

© 2000-2018 by Daniel Pimentel (d4n1). Under MIT.