Rico贾若童的博客

Git

Gitalk

Gitalk Gitalk is a free, open-source commenting system that uses GitHub issues for comment storage. It’s an excellent option for developers hosting websites on platforms like GitHub Pages. Cre...

Posted by Rico's Nerd Cluster on August 1, 2018

VSCode

Debugging ROS2 Projects, Remote SSH

Useful Shortcuts Debugger; F11: step into; Shift f11: step out F5 continue F10: step over ctrl-shift-y to open debug console Set Up VSCode For ROS2 Development In Docker Reference T...

Posted by Rico's Nerd Cluster on August 1, 2018

Docker - Docker Basics

What is Docker, Basic Docker Operations, Docker Run

What Is Docker? Deploying and updating software across different operating systems can be cumbersome. Docker simplifies this by providing an isolated environment that runs independently of the hos...

Posted by Rico's Nerd Cluster on June 1, 2018

Linux - Operating System

Paging, Concurrency

Paging A page of memory is the smallest fixed-length block of virtual memory managed by OS. To use virtual memory, the OS needs to transfer pages between the main memory and the secondary memory. ...

Posted by Rico's Nerd Cluster on January 20, 2018

Linux Miscellaneous Thingies

Window Focus, Screenshots, File Differences, Formats, Shortkeys, UART, Tmux

Screenshots sudo apt install gnome-screenshot Open keyboard shortcuts -> add custom shortcuts I use ctrl-alt-4 to enable gnome-screenshot -a Window Focus On my Ubuntu 22.04 system, wh...

Posted by Rico's Nerd Cluster on January 17, 2018

Linux - Udev Rules And Systemd Services

Udev Rules Systemd Services

Udev Unix Kernel is a monolithic kernel and provides API to access these hardware. Udev is a device manager of Linux Kernel, and serves as a successor of the Unix Kernel. It handles device nodes i...

Posted by Rico's Nerd Cluster on January 7, 2018

Linux - SSH and X Window System

X Window System, SSH, Static IP

SSH Generate an SSH Key: ssh-keygen -t rsa -b 4096. This will create ~/.ssh/id_rsa and optionally sets a passphrase Copy ssh onto a remote machine: ssh-copy-id username@rem...

Posted by Rico's Nerd Cluster on January 5, 2018

Electronics - General Science Facts

Adiabatic Cooling

Adiabatic Cooling In an adiabatic process, the system does not gain or lose heat (Q=0Q=0), meaning that all changes in internal energy come from work done by or on the gas. For an ideal gas, the i...

Posted by Rico's Nerd Cluster on July 1, 2017

Literature - The Wealthy Barber Notes

Financial Literacy

Roy’s Story “We all felt bad about Roy having to put off his dream of becoming a lawyer, but deep down we knew that he was doing the right thing. You got to be there when your family needs you,...

Posted by Rico's Nerd Cluster on June 5, 2017

Electronics - General Electronics Notes

Encoders, Motors, Testing

Electronics EEPROM EEPROM (Electrically Erasable Programmable Read-Only Memory) is a type of non-volatile memory used in microcontrollers to store small amounts of data that must be preserved whe...

Posted by Rico's Nerd Cluster on June 3, 2017

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