{0 Cmdliner {%html: <span class="version">v1.3.0</span>%}}

[Cmdliner] provides a simple and compositional mechanism
to convert command line arguments to OCaml values and pass them to
your functions.

The library automatically handles syntax errors, help messages and
UNIX man page generation. It supports programs with single or multiple
commands (like [git]) and respect most of the
{{:http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap12.html}
POSIX} and
{{:http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html}
GNU} conventions.

{1:manuals Manuals}

The following manuals are available.

{ul
{- The {{!page-tutorial}tutorial} gets you through the steps to write
   your first command line interface with Cmdliner.}
{- The {{!page-cli}Command line interface manual} describes how command
   lines and environment variables are parsed by Cmdliner.}
{- {{!page-tool_man}Tool man pages} describes how Cmdliner generates
   man pages for your tools and how you can format them.}
{- The {{!page-examples}examples page} has a few annoted examples that
   show to express the command line interface of a few classic tools with
   Cmdliner}}

{1:api API}

{!modules:
Cmdliner
}