When we use curlto make network requests, it is very important to understand how to use parameters effectively. curlA number of parameters are provided to control the behavior and configuration of the request. In this blog post, we will explain some commonly used curlparameters in detail to help you better understand how to take advantage of this powerful tool.
What is curl?
curlis a command line tool for sending and receiving data, typically used to communicate with network services. It supports multiple protocols, including HTTP, HTTPS, FTP, SMTP, and more, so it can be used for a variety of different purposes, such as downloading files, uploading files, performing HTTP requests, and testing the availability of network services.
Basic usage
The command syntax is as follows:
crul [选项] [url]
The meaning of common options in commands:
| **Parameter options | describe |
|---|---|
-X |
Specify HTTP method |
-H |
Set request header |
-d |
Send request data |
-o |
Save response to file |
-i |
Show response headers |
-v |
show verbose output |
--data-binary |
Send data in binary format |
-T |
Upload files to server |
-u |
Set username and password |
Usage example
Common post requests
curl -H "Content-type: application/json” -X POST -d '{"conversationId": "20222111001","nameSpaces": [{"nameSpace": "19952","keyWord": ["test"]}]}' "http://192.168.10.108:8080/test/delKeyWords"
- -H: request header information
- -X: Request method POST
- -d: request data
Show response headers
curl -i https://www.baidu.com/
Summarize
curlis a powerful and flexible command line tool that can be used to communicate with network services. Whether you're making a simple GET request or handling complex file uploads, curl can meet your needs. I hope this article can help you better understand and use it curlfor more effective network communication in your daily work. If you want to learn more curl, check out the official documentation to learn more advanced usage and options.
Official: https://curl.se/