cURL is a command-line tool for transferring data using various network protocols. The name stands for “Client for URL”.

cURL is used for a variety of tasks, such as:

• Downloading files from the internet
• Uploading files to the internet
• Sending and receiving HTTP requests
• Testing web APIs
• Debugging network problems

cURL is available for Windows, macOS, Linux, and other operating systems. It can be installed from the official cURL website or from most package managers.

To use cURL, you need to specify the URL of the resource that you want to access, as well as the desired action. For example, to download the file “index.html” from the website “www.example.com”, you would use the following command:

curl https://www.example.com/index.html

cURL supports a wide range of options that allow you to customize the behavior of the tool. For example, you can use the -o option to specify a file to save the downloaded data to, or the -u option to specify a username and password for authentication

For more information on cURL, please see the cURL documentation.