Abort if no battery is available

diff --git a/battery b/battery
index 12682d3e452040648c238f9327b52762efa95bb3..487610ba043f116e1188cb4586c577d96084f370 100755 (executable)
--- a/battery
+++ b/battery
@@ -29,6 +29,11 @@ function battery_capacity {
 healthy='#859900'
 low='#b58900'
 discharge='#dc322f'
+
+# Abort if no battery is available
+if [ ! -e "/sys/class/power_supply/BAT0" ]; then
+  exit
+fi
  
 # Get battery status
 if [ -e "/sys/class/power_supply/BAT0/charge" ]; then