bugfixes to maint script

src/mcbe/assets/bin/maint

@@ -13,7 +13,8 @@ day=$(date +%d)
 month=$(date +%m)
 year=$(date +%Y)
 # check if any players are currently logged in
-players=$(mcbe-exec list | cut -d ' ' -f 3 | cut -d '/' -f 1)
+mcbe-exec list > /dev/null
+players=$(mcbe-exec list | head -n 1 | cut -d ' ' -f 3 | cut -d '/' -f 1)
 
 # cd to backup dir
 cd /vol/data/backup