curl/docs/cmdline-opts/include.md

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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: include Short: i Help: Include response headers in output Protocols: HTTP FTP Category: important verbose Added: 4.8 Multi: boolean See-also:

• verbose Example:
• -i $URL ---

--include

Include response headers in the output. HTTP response headers can include things like server name, cookies, date of the document, HTTP version and more... With non-HTTP protocols, the "headers" are other server communication.

To view the request headers, consider the --verbose option.

Prior to 7.75.0 curl did not print the headers if --fail was used in combination with this option and there was error reported by server.