我制作了一个.SH如下所示的文件：
让人们知道服务器将要重新启动：
tmux send-keys -t VHS "/say §cServer restarting in §l30 minutes. §rPlease get ready to log off." Enter
# Wait for 1770 seconds (29 minutes and 30 seconds)
sleep 1770s
向服务器发送重启倒计时消息：
tmux send-keys -t VHS "/say §cServer is restarting in §l30 seconds! §rthe restart will take aproximately 5 minutes!" Enter
sleep 20s
tmux send-keys -t VHS "/say §cServer is restarting in §l10 seconds!" Enter
sleep 5s
tmux send-keys -t VHS "/say §cServer is restarting in §l5 seconds!" Enter
sleep 1s
tmux send-keys -t VHS "/say §cServer is restarting in §l4 seconds!" Enter
sleep 1s
tmux send-keys -t VHS "/say §cServer is restarting in §l3 seconds!" Enter
sleep 1s
tmux send-keys -t VHS "/say §cServer is restarting in §l2 seconds!" Enter
sleep 1s
tmux send-keys -t VHS "/say §cServer is restarting in §l1 second!" Enter
sleep 1s
停止 Minecraft 服务器：
tmux send-keys -t VHS "/stop" Enter
sleep 300s
使用脚本重新启动服务器run.sh：
tmux send-keys -t VHS "./run.sh" Enter
我为 crontab 编写的代码行如下所示：
0 21 * * * /VHServer/restart.sh
该.sh文件似乎运行了除/stop命令和可能./run.sh为服务器设置的所有内容，可以请我解释一下原因吗？