How does curl command work internally in Linux?

The curl command in Linux is a versatile tool used for transferring data using various network protocols such as HTTP, HTTPS, FTP, and more. It allows users to interact with web servers and APIs directly from the command line. Curl can be used to download files, upload files, and perform various operations on remote servers. Internally, curl works by establishing a connection to the specified URL, sending a request, and then processing the response. It can also handle complex scenarios like authentication, cookies, and session management.

Here's a basic example of how to use curl to fetch the content of a webpage:

curl http://example.com

curl Linux command data transfer HTTP HTTPS FTP command line tool web servers APIs

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