Back to List
TechnologyProgrammingUnixStack Overflow

Understanding the Meaning of '&2>&1' in Programming Contexts: A Hacker News Discussion

This news item, originating from a Hacker News discussion on Stack Overflow, addresses the query 'What does &2>&1 mean?'. The original content consists solely of 'Comments', indicating an ongoing discussion or a request for clarification on this specific programming construct. Without further details, the core of the news is the existence of this question and the implied community engagement around its explanation.

Hacker News
Share

The news revolves around a specific programming query posed on Stack Overflow, titled 'What does &2>&1 mean?', and subsequently highlighted on Hacker News. The provided original content is simply 'Comments', which suggests that the Stack Overflow page is likely a forum where users are discussing, explaining, or seeking clarification on the meaning and usage of the '&2>&1' construct. This construct is commonly encountered in shell scripting, particularly in Unix-like environments, where it relates to file descriptor redirection. Specifically, '&2' refers to the standard error (stderr) file descriptor, and '&1' refers to the standard output (stdout) file descriptor. The '>&1' part typically means to redirect standard error to the same location as standard output. The brevity of the original news content, limited to 'Comments', indicates that the news itself is the existence of this technical question and the implied community effort to provide answers and explanations. It points to the dynamic nature of technical knowledge sharing platforms like Stack Overflow and the interest generated within communities like Hacker News for such discussions.

Read Original Article

Related News

Technology

Datawhale China Launches 'Hello-Agents': A Beginner's Guide to Building Intelligent Agents from Scratch

Datawhale China has released 'Hello-Agents,' a new tutorial titled 'Building Intelligent Agents from Scratch.' This resource aims to provide a foundational understanding and practical guidance on the principles and implementation of intelligent agents, designed for beginners. The project is available on GitHub Trending and includes both Chinese and English versions.

Technology

GitHub Trending Project 'system-prompts-and-models-of-ai-tools' Catalogs Prompts and Models for Leading AI Development Tools

A new project, 'system-prompts-and-models-of-ai-tools,' is trending on GitHub, authored by x1xhlol. Published on February 27, 2026, this repository compiles system prompts and models for a comprehensive list of AI development tools. The collection includes resources for Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae, Traycer AI, VSCode Agent, Warp.dev, Windsurf, Xcode, Z.ai Code, Dia, and v0, alongside other open-source tools. This resource aims to provide a centralized reference for developers working with various AI-powered coding assistants and platforms.

Technology

Scrapling: An Adaptive Web Scraping Framework for Single Requests to Large-Scale Operations Hits GitHub Trending

Scrapling, an adaptive web scraping framework, has recently appeared on GitHub Trending. Developed by D4Vinci, this tool is designed to handle a wide range of web scraping tasks, from individual requests to extensive, large-scale crawling operations. Its adaptive nature suggests flexibility and efficiency in managing diverse web data extraction needs. Further details and documentation are available via its Read the Docs link.