diff --git a/components/process.rst b/components/process.rst
index 9d07ff264f4..0f383de9881 100644
--- a/components/process.rst
+++ b/components/process.rst
@@ -233,6 +233,21 @@ in the output and its type::
}
});
+You may want to wait for a specific output of the process you started
+asynchronously, for this use case you may use the method
+:method:`Symfony\\Component\\Process\\Process::waitUntil`:
+
+ $process = new Process(array('/usr/bin/php', 'slow-starting-server.php'));
+ $process->start();
+
+ // ... do other things
+
+ $process->waitUntil(function ($type, $output) {
+ return $output === 'Ready. Waiting for commands...';
+ });
+
+ // ... do things after the process is ready
+
Streaming to the Standard Input of a Process
--------------------------------------------
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