curl/docs/cmdline-opts/alt-svc.md

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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: alt-svc Arg: Protocols: HTTPS Help: Enable alt-svc with this cache file Added: 7.64.1 Category: http Multi: append See-also:

• resolve
• connect-to Example:
• --alt-svc svc.txt $URL ---

--alt-svc

This option enables the alt-svc parser in curl. If the file name points to an existing alt-svc cache file, that gets used. After a completed transfer, the cache is saved to the file name again if it has been modified.

Specify a "" file name (zero length) to avoid loading/saving and make curl just handle the cache in memory.

If this option is used several times, curl loads contents from all the files but the last one is used for saving.