So, you're looking to get Claude Code installed on your Ubuntu system? It's a fantastic tool, really, a smart programming assistant from Anthropic that can understand your code's context, help with editing, debugging, and even automate those sometimes-tedious Git operations. Think of it as having a knowledgeable coding buddy right there with you.
First things first, let's talk about what your Ubuntu machine needs. The reference material points out that Ubuntu 20.04 or newer is the sweet spot. You'll also need Node.js, specifically version 18 or later, and a decent amount of RAM – 4GB is the minimum they suggest. If your system is a bit older or you're not sure about your Node.js version, don't worry, we'll cover that.
Installing Node.js on Ubuntu is pretty straightforward. A common way is to use the NodeSource repository. You'll typically run a command like this:
curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo bash -
sudo apt-get install -y nodejs
This fetches the setup script for the latest Long Term Support (LTS) version of Node.js and then installs it. After that, you can verify the installation by typing node -v and npm -v in your terminal. You want to see versions 18 or higher.
Once Node.js is sorted, installing Claude Code itself is usually a breeze. The command you'll likely use is:
npm install -g @anthropic-ai/claude-code
This uses npm (Node Package Manager) to install Claude Code globally on your system, making it accessible from anywhere in your terminal. To confirm it's installed correctly, you can run:
claude --version
If you're in a region where direct access might be tricky, or if you're using a specific provider like LanyunAI, you might need to configure some environment variables. This often involves setting ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN. For instance, you might see something like:
export ANTHROPIC_BASE_URL='https://anyrouter.top'
export ANTHROPIC_AUTH_TOKEN='your_api_key'
Remember to replace 'your_api_key' with your actual API key. It's always a good idea to check the specific instructions from your provider for the most accurate setup.
After installation, you'll want to initialize Claude Code within your project directory. Navigate to your project folder in the terminal and run:
claude init
This usually sets up a CLAUDE.md file, which is where Claude Code might store project-specific configurations or notes. From there, you can start interacting with it. Imagine being in your project directory and asking:
> What is this project about?
Or perhaps:
> In UserController, add an endpoint for creating users.
It's designed to understand these natural language commands and act upon them within your codebase. The reference materials also highlight some advanced features like 'Plan Mode', which is a read-only analysis mode designed for safety during complex project planning. It's quite a neat innovation, promising significant time savings.
So, there you have it – a path to getting Claude Code installed and ready to assist you on your Ubuntu machine. It's all about making your coding life a little smoother and a lot more efficient.