Long: expect100-timeout Arg: Help: How long to wait for 100-continue Protocols: HTTP Added: 7.47.0 See-also: connect-timeout Category: http Example: --expect100-timeout 2.5 -T file $URL --- Maximum time in seconds that you allow curl to wait for a 100-continue response when curl emits an Expects: 100-continue header in its request. By default curl will wait one second. This option accepts decimal values! When curl stops waiting, it will continue as if the response has been received.