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-rw-r--r--erts/doc/src/erlang.xml4
1 files changed, 4 insertions, 0 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 0963904b83..2fbfe6eb74 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -3573,6 +3573,10 @@ os_prompt% </pre>
<p><c>Bytes</c> is the total number of bytes written to
the port.</p>
</item>
+ <tag><c>{os_pid, Integer}</c></tag>
+ <item>
+ <p><c>Integer</c> is the OS pid of the spawned process (Unix systems only).</p>
+ </item>
</taglist>
<p>Failure: <c>badarg</c> if <c>Port</c> is not a local port.</p>
</desc>