1 Long: etag-compare 2 Arg: <file> 3 Help: Pass an ETag from a file as a custom header 4 Protocols: HTTP 5 Added: 7.68.0 6 Category: http 7 --- 8 This option makes a conditional HTTP request for the specific 9 ETag read from the given file by sending a custom If-None-Match 10 header using the extracted ETag. 11 12 For correct results, make sure that specified file contains only a single 13 line with a desired ETag. An empty file is parsed as an empty ETag. 14 15 Use the option --etag-save to first save the ETag from a response, and 16 then use this option to compare using the saved ETag in a subsequent request. 17 18 \fCOMPARISON\fP: There are 2 types of comparison or ETags, Weak and Strong. 19 This option expects, and uses a strong comparison. 20