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curl/docs/cmdline-opts/etag-compare.md
Daniel Stenberg fe9f68fa61
cmdline-opts: shorter help texts 
In an effort to increase the readability of the "--help all" output on
narrow (80 column) terminals.

Co-authored-by: Jay Satiro

Closes #13169
2024-03-25 13:05:24 +01:00

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c SPDX-License-Identifier Long Arg Help Protocols Added Category Multi See-also Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. curl etag-compare <file> Load ETag from file HTTP 7.68.0 http single
etag-save
time-cond
--etag-compare etag.txt $URL

--etag-compare

Make a conditional HTTP request for the specific ETag read from the given file by sending a custom If-None-Match header using the stored ETag.

For correct results, make sure that the specified file contains only a single line with the desired ETag. An empty file is parsed as an empty ETag.

Use the option --etag-save to first save the ETag from a response, and then use this option to compare against the saved ETag in a subsequent request.