curl/docs/cmdline-opts/etag-compare.d
Daniel Stenberg ddaa85893d
curl.1: require "see also" for every documented option
gen.pl now generates a warning if the "See Also" field is not filled in for a
command line option

All command line options now provide one or more related options. 167
"See alsos" added!

Closes #8019
2021-11-15 23:06:41 +01:00

21 lines
655 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
Example: --etag-compare etag.txt $URL
See-also: etag-save time-cond
---
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
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.