diff --git a/plugins/asterisk/asterisk_channels b/plugins/asterisk/asterisk_channels
index 2eb995c6..44fbca2b 100644
--- a/plugins/asterisk/asterisk_channels
+++ b/plugins/asterisk/asterisk_channels
@@ -1,28 +1,26 @@
-#!/usr/bin/php
-<?
+#! /bin/sh
+# Munin plugin
+# Gets number of active channels
+# By Eugene Varnavsky
+#  Converted to /bin/sh by Steve Schnepp
+# June 2012
+# Version 1.0
+#
+# LGPL License
 
-// Munin plugin
-// Gets number of active channels
-// By Eugene Varnavsky
-// June 2012
-// Version 1.0
-//
-// LGPL License
+if [ $1 = "autoconf" ]; then
+        echo "yes"
+        exit 0
+fi
 
-if (isset($argv[1]) && $argv[1] == "autoconf") {
-        echo "yes\n";
-        exit(0);
-}
-if (isset($argv[1]) && $argv[1] == "config") {
-        echo "graph_title Asterisk Channels\n";
-        echo "graph_args --base 1000 -l 0\n";
-        echo "graph_vlabel Channels\n";
-        echo "graph_category asterisk\n";
-        echo "channels.label Channels\n";
-        exit (0);
-}
+if [ $1 = "config" ]; then
+        echo "graph_title Asterisk Channels"
+        echo "graph_args --base 1000 -l 0"
+        echo "graph_vlabel Channels"
+        echo "graph_category asterisk"
+        echo "channels.label Channels"
+        exit 0
+fi
 
-$out = `asterisk -x "core show channels"`;
-preg_match('/(\d{1,4}) active channels/i', $out, $channels);
-echo "channels.value $channels[1]\n";
-?>
+asterisk -x "core show channels" | awk '/active channels/ { print "channels.value " $1 }'
+exit 0