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curl/docs/cmdline-opts/etag-compare.d
Emil Engler 5dddc1dc7e
docs: add categories to all cmdline opts
Adapted gen.pl with 'listcats'

This commit is a part of "--help me if you can"

Closes #5680
2020-09-04 15:38:14 +02:00

20 lines
710 B
Makefile

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.
\fCOMPARISON\fP: There are 2 types of comparison or ETags, Weak and Strong.
This option expects, and uses a strong comparison.