Claude Code CLI Quick Tutorial: A Practical Command Set from Environment Setup to Batch Processing

EEva·March 1, 2026·1 min read

Claude Code Configuration Tutorial (macOS Example)

1. Preparation and Installation

1. Essential Tools

Tool Purpose Download URL
Node.js Runtime Environment https://nodejs.org
Git Version Control https://git-scm.com

2. Check Prerequisites
Verify the installations in your terminal:

node -v
git --version

3. Install Claude Code Globally

npm install -g @anthropic-ai/claude-code

4. Verify Installation

claude --version

2. Configuration and Startup

1. Configure Environment Variables
Open your terminal profile (using vim or your preferred editor like cursor):

vim ~/.zshrc

Append the following lines to the end of the file and save:

export ANTHROPIC_BASE_URL="https://******"
export ANTHROPIC_AUTH_TOKEN="******"

2. Reload Configuration
Apply the new environment variables:

source ~/.zshrc

3. Start Claude
Simply type the following in your terminal:

claude

3. Common Commands

While running Claude Code, use the following slash (/) commands for quick actions:

  • /help: Show all available commands
  • /exit: Exit the current conversation
  • /clear: Clear the current conversation history
  • /rename <name>: Rename the current session
  • /resume [session]: Resume a named session
  • /model: Switch the AI model
  • /review: Perform an AI code review
  • /rewind: Revert changes (code/conversation)
  • /cost: View Token usage and cost consumption

For more commands, visit the official docs: https://code.claude.com/docs/en/overview