x-knowledge

# x-cmd Knowledge Search Tools ## Overview This skill provides comprehensive command-line access to major knowledge sources and search engines through the x-cmd ecosystem. The tools enable efficient information retrieval, technical documentation browsing, and knowledge discovery directly from the terminal. ## Available Tools ### Hacker News (hn) Browse and search Hacker News content with interactive table interface. - **Usage**: `x hn [subcommand]` - **Key subcommands**: - `top` - Display top posts - `new` - Display new posts - `best` - Display best posts - `ask` - Display ask posts - `::` - Search with DuckDuckGo and AI assistance - **Examples**: - `x hn` - View top posts - `x hn :: llama3` - Search for llama3 with AI assistance - `x hn top --json 11,20` - Get posts 11-20 in JSON format ### Wikipedia (wkp) Search Wikipedia and extract article summaries. - **Usage**: `x wkp [subcommand] [query]` - **Key subcommands**: - `search` - Search Wikipedia pages - `extract` - Get article summaries - `suggest` - Get search suggestions - `:` - Search with DuckDuckGo - **Examples**: - `x wkp search AI` - Search for AI articles - `x wkp extract OpenAI` - Get OpenAI summary - `x wkp suggest pythen` - Get spelling suggestions ### DuckDuckGo Search (ddgo) Web search engine with AI-powered results. - **Usage**: `x ddgo [query]` - **Key subcommands**: - `--ai` - Use AI to select and summarize results - `--top N` - Get top N results - `dump --json` - Output results in JSON format - `init` - Configure proxy settings - **Examples**: - `x ddgo bash` - Search for bash information - `x ddgo --ai bash` - AI-assisted bash search - `x ddgo --top 10 bash` - Get top 10 bash results ### RFC Documents (rfc) Browse and search Internet RFC documents. - **Usage**: `x rfc [subcommand]` - **Key subcommands**: - `ls` - List all RFC documents - `txt` - Read RFC document content - `:` - Search RFC content - `::` - Search with AI summary - **Examples**: - `x rfc ls` - List all RFCs - `x rfc 1003` - Read RFC 1003 - `x rfc : csv` - Search for CSV-related RFCs ### Project Gutenberg Books (gtb) Search and browse free ebooks from Project Gutenberg. - **Usage**: `x gtb [subcommand]` - **Key subcommands**: - `search` - Search books by keyword - `show` - View book details interactively - `txt` - Get book text content - `:` - Search with DuckDuckGo - **Examples**: - `x gtb` - List all books - `x gtb search Dumas` - Search for Dumas books - `x gtb show 100` - View book ID 100 ### Stack Exchange (se) Search across Stack Exchange sites. - **Usage**: `x se [subcommand] [query]` - **Key subcommands**: - `search` - Search questions - `question` - Get question answers - `:` - Search with DuckDuckGo - `site` - View available sites - **Examples**: - `x se search "how to use jq"` - Search for jq usage - `x se :au "how to use jq"` - Search Ask Ubuntu - `x se question 75261408` - Get question answers ## Installation and Setup ### Prerequisites - x-cmd CLI installed - Internet connection ### Configuration Each tool supports configuration through: - `init` - Interactive configuration setup - `cfg` - Proxy and API endpoint configuration - `cur` - Session default management ### Proxy Setup For tools requiring proxy access: ```bash x ddgo init # Configure proxy for DuckDuckGo x hn init # Configure proxy for Hacker News ``` ## Usage Patterns ### Quick Information Retrieval - Use `x ddgo --ai` for AI-assisted search - Use `x wkp extract` for quick summaries - Use `x hn top` for latest tech news ### Technical Documentation - Use `x rfc` for protocol specifications - Use `x se` for programming questions - Use `x gtb` for reference books ### Interactive Browsing - Most tools support interactive table interfaces - Use arrow keys for navigation - Press `o` to open links in browser - Press `u` to open user profiles ## Troubleshooting ### Common Issues - **Network errors**: Check proxy configuration with `init` subcommand - **No results**: Verify search query syntax - **Permission errors**: Ensure x-cmd has network access ### Performance Tips - Use `--json` flag for programmatic output - Use `--top N` to limit results - Configure data retention settings with `cfg` subcommand ## Integration These tools can be combined with other x-cmd modules: - Pipe output to `@zh` for Chinese translation - Use with `x jq` for JSON processing - Combine with `x curl` for advanced HTTP requests ## Support For additional help: - Visit: https://x-cmd.com - Use `x [tool] --help` for specific tool documentation - Check individual module pages for detailed usage