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How to Use curl to Download Files and Test URLs Step by Step
Use the curl command to download files, follow redirects, send headers and data, show response codes and timing, and fail properly in scripts.
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Use the curl command to download files, follow redirects, send headers and data, show response codes and timing, and fail properly in scripts.

Compare curl, HTTPie and xh for API work: JSON request syntax, output formatting, sessions, speed, availability and which fits scripts.

Retry curl requests safely with --retry flags, respect 429 and Retry-After, add backoff and jitter, throttle requests, and avoid repeating unsafe calls.

Call APIs from shell scripts with curl and handle errors properly: fail flags, status codes, timeouts, jq parsing and a request function.