cURL is a tool to transfer data from/to a server,using one of the supported protocols(FILE , FTP , FTPS , GOPHER , SCP , SFTP , SMB , DICT, HTTP, HTTPS , POP3 , POP3S , RTMP, RTSP , IMAP , IMAPS , LDAP, LDAPS , SMBS , SMTP , SMTPS , TELNET and TFTP).The command is designed to work without user interaction