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curl: Command Line Tool and Library for Data Transfer
curl is a command-line tool and library for transferring data with URL syntax, supporting a vast range of protocols including HTTP, FTP, SCP, and more. It's widely used for fetching data, testing APIs, and automating tasks.
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Added on 2025年6月30日38,205
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LanguageProject Introduction
Summary
curl is a highly portable command line tool and a library, libcurl, for transferring data with URL syntax. It is designed to be reliable and efficient for use in scripts, applications, and manual operations.
Problem Solved
Provides a reliable and flexible tool/library to programmatically transfer data across various networks and protocols, overcoming the limitations of built-in system tools or requiring complex manual implementations for different protocols.
Core Features
Wide Protocol Support
Supports over 25 protocols for data transfer, including HTTP, HTTPS, FTP, FTPS, SCP, SFTP, and more.
Versatile Interface (CLI & Library)
Provides a consistent command-line interface and a powerful library (libcurl) for use in applications.
Rich Feature Set
Allows complex operations like authentication, cookies, proxies, and bandwidth limits easily via URL syntax and command options.
Tech Stack
C
libcurl
SSL/TLS Libraries (OpenSSL, GnuTLS, etc.)
Zlib (for compression)
使用场景
curl is used in a wide variety of scenarios ranging from simple file downloads to complex network debugging and application development.
文件下载 (File Downloads)
Details
Download files from HTTP, FTP, or other servers, resume interrupted downloads, or download multiple files.
User Value
Reliably fetch data or software from remote sources.
API交互与测试 (API Interaction & Testing)
Details
Interact with RESTful APIs to send data (POST, PUT) or retrieve data (GET), including handling headers, authentication, and various data formats.
User Value
Rapidly test API endpoints or use in scripts for automated API calls.
文件上传 (File Uploads)
Details
Upload files to remote servers using protocols like FTP, SFTP, SCP, or HTTP POST.
User Value
Easily transfer local files to remote storage or servers.
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