rewrite st-power for freebsd

bin/st-power

@@ -17,6 +17,11 @@
 #CURRENT=$(cat /sys/class/power_supply/BAT*/current_now)
 #POWER=$(echo "scale=2; $VOLTAGE*$CURRENT/1000000000000" | bc)
 
+# freebsd
+#CHARGE=$(acpiconf -i 0 | grep "Remaining capacity" | awk '{print $3}')
+#POWER_RAW=$(acpiconf -i 0 | grep "Present rate:" | awk '{print $3}')
+#POWER="$(echo "scale=1; $POWER_RAW/1000" | bc)W"
+
 # if it is present, just divide it to watts (from micro watts on thinkpads, perhaps something else on other platforms)
 POWER=$(cat /sys/class/power_supply/BAT*/power_now)
 POWER="$(echo "scale=2; $POWER/1000000" | bc)W"