Auto update aria2 tracker from github

aria2_tracker_update.sh

#!/bin/bash

#ref: https://github.com/ngosang/trackerslist

killall aria2c &>/dev/null

list=`wget -qO- https://ngosang.github.io/trackerslist/trackers_all_ip.txt|awk NF|sed ":a;N;s/\n/,/g;ta"`

if [ -z "`grep "bt-tracker" /etc/aria2/aria2.conf`" ]; then
    sed -i '$a bt-tracker='${list} /etc/aria2/aria2.conf
    echo add......starting
    sleep 3
    sudo aria2c --conf-path=/etc/aria2/aria2.conf -D
    ps -aux|grep aria
else
    sed -i "s@bt-tracker.*@bt-tracker=$list@g" /etc/aria2/aria2.conf
    echo update......starting
    sleep 3
    sudo aria2c --conf-path=/etc/aria2/aria2.conf -D
    ps -aux|grep aria
fi