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<h2><span class="refentrytitle">Function template system</span></h2>
<p>boost::process::system</p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../process/reference.html#header.boost.process.system_hpp" title="Header &lt;boost/process/system.hpp&gt;">boost/process/system.hpp</a>&gt;

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<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="special">...</span> Args<span class="special">&gt;</span> <span class="keyword">int</span> <span class="identifier">system</span><span class="special">(</span><span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.31.9.24.4.4"></a><h2>Description</h2>
<p>Launches a process and waits for its exit. It works as std::system, though it allows all the properties boost.process provides. It will execute the process and wait for it's exit; then return the exit_code.</p>
<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">ret</span> <span class="special">=</span> <span class="identifier">system</span><span class="special">(</span><span class="string">"ls"</span><span class="special">)</span><span class="special">;</span>
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<tr><td align="left" valign="top"><p>Using this function with synchronous pipes leads to many potential deadlocks.</p></td></tr>
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When using this function with an asynchronous properties and NOT passing an io_context object, the system function will create one and run it. When the io_context is passed to the function, the system function will check if it is active, and call the io_context::run function if not. </p>
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