curl/docs/cmdline-opts/user-agent.md

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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Short: A Long: user-agent Arg: Help: Send User-Agent to server Protocols: HTTP Category: important http Added: 4.5.1 Multi: single See-also:

• header
• proxy-header Example:
• -A "Agent 007" $URL ---

--user-agent

Specify the User-Agent string to send to the HTTP server. To encode blanks in the string, surround the string with single quote marks. This header can also be set with the --header or the --proxy-header options.

If you give an empty argument to --user-agent (""), it removes the header completely from the request. If you prefer a blank header, you can set it to a single space (" ").

By default, curl uses curl/VERSION, such as User-Agent: curl/%VERSION.