curl is a tool to transfer data from or to a server, using one of the supported protocols ( DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET and TFTP ).
The command is designed to work without user interaction.
原文：https://www.cnblogs.com/pzk7788/p/10188769.html