From d7dcb0b079c059414a374c36f90766b3e7dc5ce1 Mon Sep 17 00:00:00 2001
From: "kload@kload.fr" <kload@kload.fr>
Date: Sun, 1 Dec 2013 11:53:50 +0100
Subject: [PATCH] Update packaging_apps.md

---
 packaging_apps.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packaging_apps.md b/packaging_apps.md
index 3f966470..93884eca 100644
--- a/packaging_apps.md
+++ b/packaging_apps.md
@@ -129,6 +129,17 @@ Since YunoHost has a unified architecture, you will be able to guess most of the
 ### Helpers
 The CLI [moulinette](#/moulinette) provides a few tools to make the packager's work easier:
 
+<br>
+
+```bash
+sudo yunohost app checkport <port>
+```
+<blockquote>
+This helper checks the port and return an error if the port is already in use.
+</blockquote>
+
+<br>
+
 ```bash
 sudo yunohost app setting <id> <key> [ -v <value> ]
 ```