1<!-- Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. --> 2<!-- SPDX-License-Identifier: curl --> 3# URL 4The URL syntax is protocol-dependent. You find a detailed description in 5RFC 3986. 6 7If you provide a URL without a leading **protocol://** scheme, curl guesses 8what protocol you want. It then defaults to HTTP but assumes others based on 9often-used hostname prefixes. For example, for hostnames starting with `ftp.` 10curl assumes you want FTP. 11 12You can specify any amount of URLs on the command line. They are fetched in a 13sequential manner in the specified order unless you use --parallel. You can 14specify command line options and URLs mixed and in any order on the command 15line. 16 17curl attempts to reuse connections when doing multiple transfers, so that 18getting many files from the same server do not use multiple connects and setup 19handshakes. This improves speed. Connection reuse can only be done for URLs 20specified for a single command line invocation and cannot be performed between 21separate curl runs. 22 23Provide an IPv6 zone id in the URL with an escaped percentage sign. Like in 24 25 "http://[fe80::3%25eth0]/" 26 27Everything provided on the command line that is not a command line option or 28its argument, curl assumes is a URL and treats it as such. 29
