Explore 20 essential curl
commands for developers and sysadmins. From GET requests to file uploads and HTTP headers, this guide covers practical examples to enhance your command-line skills.
The curl
command-line tool is an indispensable utility for developers, system administrators, and network engineers who regularly interact with web services and remote servers. Whether you’re automating data transfers, testing APIs, downloading files, or troubleshooting connectivity issues, curl
provides a powerful, scriptable interface that works across virtually every platform. It supports a wide range of protocols—including HTTP, HTTPS, FTP, FTPS, SCP, SFTP, SMTP, POP3, and more—making it an incredibly flexible tool for both everyday tasks and complex integrations.
Beyond simple data retrieval, |
In this guide, we’ll explore 20 practical and commonly used curl
commands that can enhance your daily workflow. Each example is carefully chosen to illustrate real-world use cases for data transfer, API testing, troubleshooting, and automation. Where appropriate, we’ll include step-by-step explanations, CLI examples, and clear comparison tables to help you understand not just what the command does, but why and when to use it. Whether you’re a beginner looking to master the basics or an experienced professional seeking to refine your toolkit, this guide has something for you.
curl
Commands for Developers and Sysadmins1. Basic GET Request |
The most fundamental curl
operation is a GET request. You can fetch data from a URL without additional flags:
curl https://jsonplaceholder.typicode.com/todos/1
{
"userId": 1,
"id": 1,
"title": "delectus aut autem",
"completed": false
}
This retrieves data from a JSON API endpoint, returning the content to your console (above).
Command | Description |
---|---|
curl [URL] | Perform a GET request on the specified URL. |
2. Follow Redirects |
By default, curl
won’t follow redirects. To follow them, add -L
:
curl -L http://example.com
Example Domain