1 files changed, 6 insertions, 1 deletions
diff --git a/bin/bright b/bin/bright
index 7aa0801..87126e1 100755
--- a/bin/bright
+++ b/bin/bright
@@ -54,7 +54,12 @@ main()
 	esac
 
 	b=$(get_b) || return 1
-	set_b $((${b} ${dir} 1)) || return 1
+	: $((b += 1))
+	: $((b ${dir}= 1))
+	[ ${b} -gt 8 ] && b=8
+	[ ${b} -lt 1 ] && b=1
+	: $((b -= 1))
+	set_b ${b} || return 1
 
 	return 0
 }