vi /root/trackers-list-aria2.sh
內容如下：

#!/bin/bash
/usr/sbin/service aria2 stop
list=`wget -qO- https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt|awk NF|sed ":a;N;s/\n/,/g;ta"`
if [ -z "`grep "bt-tracker" /root/.aria2/aria2.conf`" ]; then
    sed -i ‘$a bt-tracker=‘${list} /root/.aria2/aria2.conf
    echo add......
else
    sed -i "s@bt-tracker.*@bt-tracker=$list@g" /root/.aria2/aria2.conf
    echo update......
fi

 #授權腳本 chmod +x /root/trackers-list-aria2.sh

aria2自動更新BT Tracker服務器列表腳本