diff --git a/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile b/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
index 8c80802..89af84c 100644
--- a/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
+++ b/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
@@ -94,10 +94,10 @@ getGatewayHoodfile() {
 }
 
 getKeyserverHoodfile() {
-	if [ $# == 1 ]; then
+	if [ $# -eq 1 ]; then
 		lat=$(uci -q get fff.system.latitude)
 		long=$(uci -q get fff.system.longitude)
-	elif [ $# == 3 ]; then
+	elif [ $# -eq 3 ]; then
 		lat=$2
 		long=$3
 	else
diff --git a/src/packages/fff/fff-hoods/files/usr/sbin/configurehood b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
index 86d83fc..c2c2506 100755
--- a/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
+++ b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
@@ -158,16 +158,16 @@ if [ -s "$hoodfile" ]; then
 				exit 1
 			fi
 
-			# add 802.11s mesh if type == "802.11s"
-			if ( [ -n "$radio5" ] && [ "$mesh_type5" == "802.11s" ] ) || [ "$mesh_type2" == "802.11s" ]; then
+			# add 802.11s mesh if type = "802.11s"
+			if ( [ -n "$radio5" ] && [ "$mesh_type5" = "802.11s" ] ) || [ "$mesh_type2" = "802.11s" ]; then
 				if ! wifiAddMesh "$radio" "$mesh_id"; then
 					echo "Can't add Mesh interface on $radio."
 					exit 1
 				fi
 			fi
 
-			# add IBSS mesh if type == "ibss"
-			if ( [ -n "$radio5" ] && [ "$mesh_type5" == "ibss" ] ) || [ "$mesh_type2" == "ibss" ]; then
+			# add IBSS mesh if type = "ibss"
+			if ( [ -n "$radio5" ] && [ "$mesh_type5" = "ibss" ] ) || [ "$mesh_type2" = "ibss" ]; then
 				if ! wifiAddAdHocMesh "$radio" "$mesh_essid" "$mesh_bssid"; then
 					echo "Can't add AdHocMesh interface on $radio."
 					exit 1
diff --git a/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select b/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select
index 85930a8..2a1c631 100755
--- a/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select
+++ b/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select
@@ -15,7 +15,7 @@ json_select vpn
 while json_select "$Index" > /dev/null
 do
 	json_get_var protocol protocol
-	if [ "$protocol" == "fastd" ]; then
+	if [ "$protocol" = "fastd" ]; then
 		json_get_var servername name
 		filename="/etc/fastd/fff/peers/$servername"
 		echo "#name \"${servername}\";" > "$filename"
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/header b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/header
index d149c04..b9ca1b6 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/header
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/header
@@ -9,7 +9,7 @@ UPGRADE_PATH="$(getUpgradePath)"
 echo -en "Content-Type: text/html\r\n\r\n"
 nav_entry() {
 	script_file="/cgi-bin/$1"
-	if [ "$script_file" == "$REQUEST_URI" ] ; then
+	if [ "$script_file" = "$REQUEST_URI" ] ; then
 		local class_active=' class="active"'
 	fi
 	echo -ne "\t<li${class_active}><a href=\"${script_file}\">$2</a></li>\n\t\t"
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/home.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/home.html
index 21bd4e7..821f7a0 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/home.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/home.html
@@ -5,7 +5,7 @@
 . /lib/functions/fff/evalhoodinfo
 
 # prepare
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	if [ "$POST_resethood" != "" ] ; then
 		# reset hood
 		rm "$hoodfilecopy" 2> /dev/null
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/password.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/password.html
index d3287bf..fc3055a 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/password.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/password.html
@@ -2,10 +2,10 @@
 
 <%
 # write
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	#check for special characters in password
 	regex='^[a-zA-Z0-9!#\$%\(\)\*\+,\.:;=\?@\^_-]+$'
-	if [ "$POST_pass1" == "" ] ; then
+	if [ -z "$POST_pass1" ] ; then
 		MSG='<span class="red">Das Passwort darf nicht leer sein!</span>'
     elif ! echo -n "$POST_pass1" | egrep -q "$regex"; then   
 		MSG='<span class="red">Passwort enth&auml;lt ung&uuml;ltige Zeichen!</span>'
@@ -46,7 +46,7 @@ fi
 <%in /www/ssl/cgi-bin/footer %>
 <%
 #force instant password change
-if [ "$restart_uhttpd" == "1" ] ; then
+if [ "$restart_uhttpd" -eq 1 ] ; then
 	/etc/init.d/uhttpd restart 2>/dev/null
 fi
 %>
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/ports.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/ports.html
index 5912126..01506fc 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/ports.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/ports.html
@@ -3,7 +3,7 @@
 <%
 board_name=$(uci -q get board.model.name)
 # write
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	if [ "$POST_change_mode" != "" ] ; then
 		sed -i '/^.*# set via WebUI/d' /etc/network.config
 		echo "ETHMODE=\"${POST_mode}\" # set via WebUI" >> /etc/network.config
@@ -45,7 +45,7 @@ format_state() {
 format_port() {
 	port=$(echo "$1" | sed 's/.* port:\([^ ]*\) .*/\1/')
 	link=$(echo "$1" | sed 's/.* link:\([^ ]*\).*/\1/')
-	if [ "$link" == "up" ] ; then
+	if [ "$link" = "up" ] ; then
 		speed=$(echo "$1" | sed 's/.* speed:\([^ ]*\).*/\1/')
 		duplex=$(echo "$1" | sed 's/.* \([^ ]*-duplex\).*/\1/')
 	else
@@ -95,7 +95,7 @@ format_port() {
 				if [ ! "$(awk -F= '/WANDEV=/ { print $2 }' /etc/network.$board_name)" = "$(awk -F= '/SWITCHDEV=/ { print $2 }' /etc/network.$board_name)" ] ; then
 					wanif=$(uci -q get network.wan.ifname)
 					link=$(cat /sys/class/net/${wanif}/operstate)
-					if [ "$link" == "up" ] ; then
+					if [ "$link" = "up" ] ; then
 						speed="connected"
 					else
 						speed="no link"
@@ -166,10 +166,10 @@ format_port() {
 				<th style="width: 1em;">Anschluss&nbsp;Modus:</th>
 				<td>
 					<select name="mode">
-						<option value="BATMAN" <% [ "$ETHMODE" == "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
-						<option value="CLIENT" <% [ "$ETHMODE" == "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
+						<option value="BATMAN" <% [ "$ETHMODE" = "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
+						<option value="CLIENT" <% [ "$ETHMODE" = "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
 						<% if grep -q "ONE_PORT" "/etc/network.$board_name" ; then %>
-						<option value="WAN" <% [ "$ETHMODE" == "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
+						<option value="WAN" <% [ "$ETHMODE" = "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
 						<% fi %>
 					</select>
 				</td>
@@ -207,16 +207,16 @@ format_port() {
 			<tr>
 				<td>
 					<select name="mode0">
-						<option value="BATMAN" <% [ "$LAN0MODE" == "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
-						<option value="CLIENT" <% [ "$LAN0MODE" == "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
-						<option value="WAN" <% [ "$LAN0MODE" == "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
+						<option value="BATMAN" <% [ "$LAN0MODE" = "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
+						<option value="CLIENT" <% [ "$LAN0MODE" = "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
+						<option value="WAN" <% [ "$LAN0MODE" = "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
 					</select>
 				</td>
 				<td>
 					<select name="mode1">
-						<option value="BATMAN" <% [ "$LAN1MODE" == "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
-						<option value="CLIENT" <% [ "$LAN1MODE" == "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
-						<option value="WAN" <% [ "$LAN1MODE" == "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
+						<option value="BATMAN" <% [ "$LAN1MODE" = "BATMAN" ] && echo -n 'selected="selected" ' %>>BATMAN</option>
+						<option value="CLIENT" <% [ "$LAN1MODE" = "CLIENT" ] && echo -n 'selected="selected" ' %>>CLIENT</option>
+						<option value="WAN" <% [ "$LAN1MODE" = "WAN" ] && echo -n 'selected="selected" ' %>>WAN</option>
 					</select>
 				</td>
 				<td><input type="submit" name="change_twoport" /></td>
@@ -240,7 +240,7 @@ format_port() {
 <%in /www/ssl/cgi-bin/footer %>
 <%
 # write
-if [ "$do_reboot" == "1" ] ; then
+if [ "$do_reboot" -eq 1 ] ; then
 	reboot
 fi
 %>
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/reboot.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/reboot.html
index eddc4ff..2efdf3e 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/reboot.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/reboot.html
@@ -2,7 +2,7 @@
 
 <%
 # prepare
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	if [ "$POST_reboot" != "" ] ; then
 		do_reboot=1
 		MSG='<span class="green">Router wird neugestartet...</span>'
@@ -29,7 +29,7 @@ fi
 <%in /www/ssl/cgi-bin/footer %>
 <%
 # write
-if [ "$do_reboot" == "1" ] ; then
+if [ "$do_reboot" -eq 1 ] ; then
 	reboot
 fi
 %>
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/settings.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/settings.html
index cfb3a6b..7dd5eed 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/settings.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/settings.html
@@ -2,7 +2,7 @@
 
 <%
 # write
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	#check for valid hostname as specified in rfc 1123
 	#see http://stackoverflow.com/a/3824105
 	regex='^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])'
@@ -24,7 +24,7 @@ if [ "$REQUEST_METHOD" == "POST" ] ; then
 
 		# Bitratenbegrenzung
 		uci -q get "fff.trafficcontrol" > /dev/null || uci -q set fff.trafficcontrol=fff
-		if [ "$POST_traffic_limit" == "on" ] ; then
+		if [ "$POST_traffic_limit" = "on" ] ; then
 			uci -q set "fff.trafficcontrol.enabled=1"
 			uci -q set "simple-tc.example.enabled=1"
 		else
@@ -40,7 +40,7 @@ if [ "$REQUEST_METHOD" == "POST" ] ; then
 
 		# Restliche Einstellungen
 		uci -q set "fff.notifyupdate=webui"
-		if [ "$POST_upgrade_notification" == "on" ] ; then
+		if [ "$POST_upgrade_notification" = "on" ] ; then
 			uci -q set "fff.notifyupdate.value=1"
 		else
 			uci -q set "fff.notifyupdate.value=0"
@@ -50,7 +50,7 @@ if [ "$REQUEST_METHOD" == "POST" ] ; then
 
 		if uci -q get system.poe_passthrough > /dev/null ; then
 			uci -q set "fff.poe_passthrough=fff"
-			if [ "$POST_poe_passthrough" == "on" ] ; then
+			if [ "$POST_poe_passthrough" = "on" ] ; then
 				uci -q set "fff.poe_passthrough.active=1"
 				uci -q set "system.poe_passthrough.value=1"
 			else
@@ -70,12 +70,12 @@ fi
 <%
 # read
 chkd='checked="checked" '
-if [ "$(uci -q get 'fff.trafficcontrol.enabled')" == "1" ] ; then # not set=0
+if [ "$(uci -q get 'fff.trafficcontrol.enabled')" -eq 1 ] ; then # not set=0
 	traffic_checked="$chkd"
 else
 	traffic_checked=""
 fi
-if [ "$(uci -q get 'fff.notifyupdate.value')" == "0" ] ; then # not set=1
+if [ "$(uci -q get 'fff.notifyupdate.value')" -eq 0 ] ; then # not set=1
 	upgrade_checked=""
 else
 	upgrade_checked="$chkd"
@@ -122,7 +122,7 @@ fi
 		
 		<%
 		if uci -q get system.poe_passthrough > /dev/null ; then
-			if [ "$(uci -q get 'fff.poe_passthrough.active')" == "1" ] ; then # not set=0
+			if [ "$(uci -q get 'fff.poe_passthrough.active')" -eq 1 ] ; then # not set=0
 				poe_pt_checked="$chkd"
 			else
 				poe_pt_checked=""
diff --git a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/upgrade.html b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/upgrade.html
index af46023..9762edc 100755
--- a/src/packages/fff/fff-web/files/www/ssl/cgi-bin/upgrade.html
+++ b/src/packages/fff/fff-web/files/www/ssl/cgi-bin/upgrade.html
@@ -2,10 +2,10 @@
 
 <%
 # prepare
-if [ "$REQUEST_METHOD" == "POST" ] ; then
+if [ "$REQUEST_METHOD" = "POST" ] ; then
 	if [ "$POST_reset" != "" ] ; then
 		# reset
-		if [ "$FORM_really_reset" == "on" ] ; then
+		if [ "$FORM_really_reset" = "on" ] ; then
 			do_reset=1
 			MSG='<span class="green">Router wird zur&uuml;ckgesetzt und anschlie&szlig;end neugestartet...</span>'
 		fi
@@ -13,12 +13,12 @@ if [ "$REQUEST_METHOD" == "POST" ] ; then
 		# upgrade
 		if [ ! -f "$HASERL_firmware_path" ] ; then
 			MSG='<span class="red">Firmware Datei nicht gefunden!</span>'
-		elif [ "$(du -k "$HASERL_firmware_path" | cut -f1)" == "0" ] ; then
+		elif [ "$(du -k "$HASERL_firmware_path" | cut -f1)" -eq 0 ] ; then
 			MSG='<span class="red">Firmware Datei ist leer!</span>'
 		elif ! error=$(sysupgrade -T "$HASERL_firmware_path") ; then
 			MSG="<span class=\"red\">Firmware Datei ung&uuml;ltig: <tt>${error}</tt></span>"
 		else
-			if [ "$POST_keep_config" == "on" ] ; then
+			if [ "$POST_keep_config" = "on" ] ; then
 				args=""
 			else
 				args="-n"
@@ -63,12 +63,12 @@ fi
 <%in /www/ssl/cgi-bin/footer %>
 <%
 # write
-if [ "$do_reset" == "1" ] ; then
+if [ "$do_reset" -eq 1 ] ; then
 	echo "<pre>"
 	echo y | firstboot
 	reboot
 	echo "</pre>"
-elif [ "$do_sysupgrade" == "1" ] ; then
+elif [ "$do_sysupgrade" -eq 1 ] ; then
 	echo "<pre>"
 	echo "# sysupgrade $args $HASERL_firmware_path"
 	sysupgrade $args $HASERL_firmware_path
