HTTP HTTP GET --etag-compare # # Server-side HTTP/1.1 304 Not modified Date: Thu, 09 Nov 2010 14:49:00 GMT Server: test-server/fake Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT ETag: "21025-dc7-39462498" Connection: close Content-Type: text/html # # Client-side http --etag-compare that gets a 304 back shouldn't overwrite the file http://%HOSTIP:%HTTPPORT/1566 -o log/output1566 --etag-compare log/etag1566 "123456" downloaded already # # Verify data after the test has been "shot" GET /1566 HTTP/1.1 Host: %HOSTIP:%HTTPPORT User-Agent: curl/%VERSION Accept: */* If-None-Match: "123456" # verify that the target file is untouched downloaded already