[#subprocess-Popen-2constructor-0f]
= xref:subprocess.adoc[subprocess]::xref:subprocess/Popen.adoc[Popen]::Popen
:relfileprefix: ../../
:mrdocs:

Launches a child process from a command given as a vector of strings, plus options.

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename... Args>
Popen(
    std::vector<std::string> vargs_,
    Args&&... args);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *vargs_*
| Command and its arguments, the first element being the program to run.
| *args*
| Option objects (such as input, output, error, or executable) configuring the launch.
|===


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