Change from which to command -v

youtube-mp3

@@ -12,13 +12,13 @@ EOF
 }
 
 # Check for youtube-dl in path
-if ! (which youtube-dl) ; then
+if ! (command -v youtube-dl) ; then
 	echo "No youtube-dl found in path"
 	exit 1
 fi
 
 # Check for ffmpeg in path
-if ! (which ffmpeg) ; then
+if ! (command -v ffmpeg) ; then
 	echo "No ffmpeg found in path"
 	exit 1
 fi