Add battery i3block script

.scripts/wm/battery.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+BAT_NUMBER=${BLOCK_INSTANCE:-"0"}
+BAT_INFO="$(acpi -b | grep Battery\ $BAT_NUMBER:)"
+
+CAPACITY=$(echo $BAT_INFO | awk '{ print int($4) }')
+TIME="$(echo $BAT_INFO | awk '{ print substr($5, 0, length($5) - 3) }')"
+
+if [ "$(echo $BAT_INFO | awk '{ print $6 }')" = "remaining" ]; then
+	if [ "$CAPACITY" -ge "80" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "60" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "40" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "20" ]; then
+		ICON=""
+	else 
+		ICON=""
+	fi
+else	
+	ICON=""
+fi
+
+echo "$ICON $CAPACITY% ($TIME)"
+echo "$ICON $CAPACITY%"
+echo "#FFFFFF"