add licence

add volume control

RandomVideo.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: Unlicense
 
 folder="/mnt/video"
 player="cvlc"
@@ -6,8 +7,8 @@ playerparam="--play-and-exit --quiet --no-osd -A alsa --alsa-audio-device=front:
 pgrepplayer="vlc"
 
 swupgpio=23
-swdowngpio=25
 
+playerfull="$(command -v $player) $playerparam"
 swupstat=$($(command -v gpio) read $swupgpio)
 
 if [ $# -eq 0 ]; then
@@ -20,7 +21,7 @@ if [ $# -gt 1 ]; then
 	exit 1
 fi
 
-if [ $swupstat -eq 1 ]; then
+if [ "$swupstat" -eq 1 ]; then
 	exit 1
 fi
 
@@ -29,9 +30,9 @@ if [ "buzzer" != "$1" ] && [ "cron" != "$1" ]; then
 	exit 1
 fi
 
-if $(command -v pgrep) "$pgrepplayer" > /dev/null; then
+if pgrep "$pgrepplayer" > /dev/null; then
 	if [ "$1" = "buzzer" ]; then
-		$(command -v pkill) "$pgrepplayer"
+		pkill "$pgrepplayer"
 	
 	elif [ "$1" = "cron" ]; then
 		exit 1
@@ -39,6 +40,6 @@ if $(command -v pgrep) "$pgrepplayer" > /dev/null; then
 	fi
 
 else 
-	$(command -v "$player") $playerparam "$(find "$folder" -maxdepth 1 -type f |sort -R |head -n1)" &
+	$playerfull "$(find "$folder" -maxdepth 1 -type f |sort -R |head -n1)" &
 
 fi