Adding bash script to connect a wlan interface to a wifi network

usage :

./setupKit.sh wlan1 reach my_secret_wpa_key

first parameter is the wifi interface
second is the SSID prefix, I use reach for  "reachxx:xx"
last is the WPA KEY to connect to network

scripts/experiment/setupKit.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+#
+# Try to setup Kit !
+#
+
+function scanWifi() {
+	local iface=${1}
+	iwinfo ${iface} scan
+	return ${?}
+}
+
+function getWifiCell()
+{
+	local iface=${1}
+	local ssidPrefix=${2}
+	res=$(scanWifi ${iface} | grep -B 1 "ESSID: \"${ssidPrefix}")
+	if [[ "${res}" == "Scanning not possible" ]] || [[ "${res}" == "" ]]
+	then
+		for try in $(seq 0 10)
+		do
+			sleep 5
+			res=$(scanWifi ${iface} | grep -B 1 "ESSID: \"${ssidPrefix}")
+			if [[ "${res}" == "Scanning not possible"  ]] || [[ "${res}" == ""  ]]
+			then
+				continue
+			else
+				echo ${res}
+				return 0
+			fi
+		done
+		echo "Error scanning wifi networks !"
+		return 2
+	else
+		echo ${res}
+		return 0
+	fi
+}
+
+function connectWifi() {
+	local iface=${1}
+	local ssidPrefix=${2}
+	local wpa=${3}
+
+	local cell=$(getWifiCell ${iface} ${ssidPrefix})
+	if [[ $? -ne 0 ]]
+	then
+		echo "Error on wifi scan !"
+		exit 12
+	fi
+	local ssid=$(echo ${cell} | awk '{print $7}' | sed -e 's/"//g')
+	local cellMAC=$(echo ${cell} | awk '{print $5}' | sed -e 's/"//g"')
+
+	set -x
+    uci delete wireless.@wifi-iface[1]
+	uci add wireless wifi-iface
+	uci set wireless.@wifi-iface[1].network="EmlidReach"
+	uci set wireless.@wifi-iface[1].ssid="${ssid}"
+	uci set wireless.@wifi-iface[1].encryption="psk2"
+	uci set wireless.@wifi-iface[1].device="radio1"
+	uci set wireless.@wifi-iface[1].mode="sta"
+	uci set wireless.@wifi-iface[1].bssid="${cellMAC}"
+	uci set wireless.@wifi-iface[1].key="${wpa}"
+    uci commit
+	reload_config
+	sleep 20
+	set +x
+    udhcpc -i ${iface}
+}
+
+#           interface SSID_PREFIX Network_KEY
+connectWifi "$1"         "$2"        "$3"
+

scripts/experiment/uciCli.sh

@@ -4,7 +4,7 @@ function scanWifi()
 {
    local ifcace=$1
    iwconfig ${iface} scan
-}
+
 
 function connectBoard()
 {