--help # # Server-side # # Client-side none curl invalid category --help --help sdfafdsfadsfsd # # Verify data after the test has been "shot" 0 Unknown category provided, here is a list of all categories: auth Authentication methods connection Manage connections curl The command line tool itself deprecated Legacy dns Names and resolving file FILE protocol ftp FTP protocol global Global options http HTTP and HTTPS protocol imap IMAP protocol ldap LDAP protocol output Filesystem output pop3 POP3 protocol post HTTP POST specific proxy Options for proxies scp SCP protocol sftp SFTP protocol smtp SMTP protocol ssh SSH protocol telnet TELNET protocol tftp TFTP protocol timeout Timeouts and delays tls TLS/SSL related upload Upload, sending data verbose Tracing, logging etc