update batperc and batpercd

bin/batperc

@@ -7,13 +7,12 @@ Yellow='\033[1;33m'
 
 batteries=$(ls /sys/class/power_supply/ | grep BAT)
 
-if [[ "$batteries" == "" ]]; then
-    printf "$Yellow**$Red error:$Color_off no battery found\n"
-    exit 1;
-fi
-
 case "$1" in
     "-c")
+        if [[ "$batteries" == "" ]]; then
+            printf "$Yellow**$Red error:$Color_off no battery found\n"
+            exit 1;
+        fi
         for i in $batteries; do
             batfull=$(cat /sys/class/power_supply/$i/energy_full)
             batnow=$(cat /sys/class/power_supply/$i/energy_now)
@@ -33,6 +32,10 @@ case "$1" in
         done
         ;;
     "-j")
+        if [[ "$batteries" == "" ]]; then
+            echo no
+            exit 1;
+        fi
         for i in $batteries; do
             batfull=$(cat /sys/class/power_supply/$i/energy_full)
             batnow=$(cat /sys/class/power_supply/$i/energy_now)

bin/batpercd

@@ -4,12 +4,13 @@ batperc=$(~/dotfiles/bin/batperc -j)
 
 echo $batperc
 
-while true; do
-    for i in $batperc; do
-        if [[ "$i" -le "20" ]]; then
-            notify-send "Battery low: $i%" -u critical
-            sleep 60
-        fi
+if [[ "$batperc" != "no" ]]; then
+    while true; do
+        for i in $batperc; do
+            if [[ "$i" -le "20" ]]; then
+                notify-send "Battery low: $i%" -u critical
+                sleep 60
+            fi
+        done
     done
-done
-
+fi