demo-curl

curl is a command line tool for transferring data with URL syntax, supporting
DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3,
POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET and TFTP.
.
curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form
based upload, proxies, cookies, user+password authentication (Basic, Digest,
NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a
busload of other useful tricks.