backlight, use case only, instead of while getopts case

1 files changed, 17 insertions, 20 deletions

diff --git a/home/xyz/.local/bin/backlight b/home/xyz/.local/bin/backlight
index 4e1a516e..3de87f56 100755
--- a/home/xyz/.local/bin/backlight
+++ b/home/xyz/.local/bin/backlight
@@ -1,26 +1,23 @@
 #!/bin/sh
-# adjust backlight
 
 brightness=$(cat /sys/class/backlight/intel_backlight/brightness)
 max_brightness=$(cat /sys/class/backlight/intel_backlight/max_brightness)
 step=$((max_brightness/20))
 
-while getopts ud opt; do
-	case $opt in
-		u)
-			case "$brightness" in
-				0) echo 1;;
-				1) echo "$step";;
-				*) echo "$((brightness+step))";;
-			esac
-		;;
-		d) 
-			case "$brightness" in
-				1) echo 0;;
-				"$step") echo 1;;
-				*) echo "$((brightness-step))";;
-			esac
-		;;
-		\?) exit 1;;
-	esac
-done > /sys/class/backlight/intel_backlight/brightness
+case "$1" in
+	'-u')
+		case "$brightness" in
+			0) echo 1;;
+			1) echo "$step";;
+			*) echo "$((brightness+step))";;
+		esac
+	;;
+	'-d')
+		case "$brightness" in
+			1) echo 0;;
+			"$step") echo 1;;
+			*) echo "$((brightness-step))";;
+		esac
+	;;
+	*) exit 1;;
+esac > /sys/class/backlight/intel_backlight/brightness