From 021d1ba92a33adc90d14c2d3402ae47f2cb79235 Mon Sep 17 00:00:00 2001
From: nemunaire <nemunaire@nemunai.re>
Date: Sun, 25 Jun 2017 20:40:48 +0200
Subject: [PATCH] tuto1: script to count layers

---
 tutorial/1/misc/count_layers.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 tutorial/1/misc/count_layers.sh

diff --git a/tutorial/1/misc/count_layers.sh b/tutorial/1/misc/count_layers.sh
new file mode 100755
index 0000000..e26dac6
--- /dev/null
+++ b/tutorial/1/misc/count_layers.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+IMG="$1"
+NLAYER=0
+
+while [ "$IMG" != "" ] && [ "$IMG" != "null" ]
+do
+    IMG=$(docker inspect "$IMG" | jq .[0].Parent | tr -d '"')
+    NLAYER=$(($NLAYER + 1))
+done
+
+echo $1 image has $NLAYER layers.