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1.1 ! misho 1: Long: version ! 2: Short: V ! 3: Help: Show version number and quit ! 4: --- ! 5: Displays information about curl and the libcurl version it uses. ! 6: ! 7: The first line includes the full version of curl, libcurl and other 3rd party ! 8: libraries linked with the executable. ! 9: ! 10: The second line (starts with "Protocols:") shows all protocols that libcurl ! 11: reports to support. ! 12: ! 13: The third line (starts with "Features:") shows specific features libcurl ! 14: reports to offer. Available features include: ! 15: .RS ! 16: .IP "IPv6" ! 17: You can use IPv6 with this. ! 18: .IP "krb4" ! 19: Krb4 for FTP is supported. ! 20: .IP "SSL" ! 21: SSL versions of various protocols are supported, such as HTTPS, FTPS, POP3S ! 22: and so on. ! 23: .IP "libz" ! 24: Automatic decompression of compressed files over HTTP is supported. ! 25: .IP "NTLM" ! 26: NTLM authentication is supported. ! 27: .IP "Debug" ! 28: This curl uses a libcurl built with Debug. This enables more error-tracking ! 29: and memory debugging etc. For curl-developers only! ! 30: .IP "AsynchDNS" ! 31: This curl uses asynchronous name resolves. Asynchronous name resolves can be ! 32: done using either the c-ares or the threaded resolver backends. ! 33: .IP "SPNEGO" ! 34: SPNEGO authentication is supported. ! 35: .IP "Largefile" ! 36: This curl supports transfers of large files, files larger than 2GB. ! 37: .IP "IDN" ! 38: This curl supports IDN - international domain names. ! 39: .IP "GSS-API" ! 40: GSS-API is supported. ! 41: .IP "SSPI" ! 42: SSPI is supported. ! 43: .IP "TLS-SRP" ! 44: SRP (Secure Remote Password) authentication is supported for TLS. ! 45: .IP "HTTP2" ! 46: HTTP/2 support has been built-in. ! 47: .IP "UnixSockets" ! 48: Unix sockets support is provided. ! 49: .IP "HTTPS-proxy" ! 50: This curl is built to support HTTPS proxy. ! 51: .IP "Metalink" ! 52: This curl supports Metalink (both version 3 and 4 (RFC 5854)), which ! 53: describes mirrors and hashes. curl will use mirrors for failover if ! 54: there are errors (such as the file or server not being available). ! 55: .IP "PSL" ! 56: PSL is short for Public Suffix List and means that this curl has been built ! 57: with knowledge about "public suffixes". ! 58: .IP "MultiSSL" ! 59: This curl supports multiple TLS backends. ! 60: .RE