121 lines
2.7 KiB
Markdown
121 lines
2.7 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: version
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Short: V
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Help: Show version number and quit
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Category: important curl
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Added: 4.0
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Multi: custom
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See-also:
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- help
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- manual
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Example:
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- --version
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---
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# `--version`
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Displays information about curl and the libcurl version it uses.
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The first line includes the full version of curl, libcurl and other 3rd party
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libraries linked with the executable.
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The second line (starts with `Release-Date:`) shows the release date.
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The third line (starts with `Protocols:`) shows all protocols that libcurl
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reports to support.
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The fourth line (starts with `Features:`) shows specific features libcurl
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reports to offer. Available features include:
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## `alt-svc`
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Support for the Alt-Svc: header is provided.
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## `AsynchDNS`
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This curl uses asynchronous name resolves. Asynchronous name resolves can be
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done using either the c-ares or the threaded resolver backends.
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## `brotli`
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Support for automatic brotli compression over HTTP(S).
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## `CharConv`
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curl was built with support for character set conversions (like EBCDIC)
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## `Debug`
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This curl uses a libcurl built with Debug. This enables more error-tracking
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and memory debugging etc. For curl-developers only!
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## `gsasl`
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The built-in SASL authentication includes extensions to support SCRAM because
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libcurl was built with libgsasl.
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## `GSS-API`
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GSS-API is supported.
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## `HSTS`
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HSTS support is present.
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## `HTTP2`
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HTTP/2 support has been built-in.
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## `HTTP3`
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HTTP/3 support has been built-in.
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## `HTTPS-proxy`
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This curl is built to support HTTPS proxy.
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## `IDN`
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This curl supports IDN - international domain names.
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## `IPv6`
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You can use IPv6 with this.
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## `Kerberos`
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Kerberos V5 authentication is supported.
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## `Largefile`
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This curl supports transfers of large files, files larger than 2GB.
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## `libz`
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Automatic decompression (via gzip, deflate) of compressed files over HTTP is
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supported.
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## `MultiSSL`
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This curl supports multiple TLS backends.
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## `NTLM`
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NTLM authentication is supported.
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## `NTLM_WB`
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NTLM delegation to winbind helper is supported.
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## `PSL`
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PSL is short for Public Suffix List and means that this curl has been built
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with knowledge about "public suffixes".
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## `SPNEGO`
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SPNEGO authentication is supported.
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## `SSL`
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SSL versions of various protocols are supported, such as HTTPS, FTPS, POP3S
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and so on.
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## `SSPI`
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SSPI is supported.
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## `TLS-SRP`
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SRP (Secure Remote Password) authentication is supported for TLS.
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## `TrackMemory`
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Debug memory tracking is supported.
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## `Unicode`
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Unicode support on Windows.
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## `UnixSockets`
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Unix sockets support is provided.
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## `zstd`
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Automatic decompression (via zstd) of compressed files over HTTP is supported.
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