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- Long: etag-compare
- Arg: <file>
- Help: Pass an ETag from a file as a custom header
- Protocols: HTTP
- Added: 7.68.0
- Category: http
- ---
- This option makes a conditional HTTP request for the specific
- ETag read from the given file by sending a custom If-None-Match
- header using the extracted ETag.
- For correct results, make sure that specified file contains only a single
- line with a 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 using the saved ETag in a subsequent request.
- \fBCOMPARISON\fP: There are 2 types of comparison or ETags: Weak and Strong.
- This option expects, and uses a strong comparison.
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