脚本内容如下：

#!/bin/sh
#!/bin/bash
### BEGIN INIT INFO
# Provides:          aria2
# Required-Start:    $remote_fs $network
# Required-Stop:     $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Aria2 Downloader
### END INIT INFO

USER=sh_user
CONF=/etc/aria2/aria2.conf
BIN=/usr/local/bin/aria2c
case "$1" in
start)
    echo "Start aria2c"
    su - $USER -c "$BIN --conf-path=$CONF"
    ;;
stop)
    echo "Stopping aria2c, please wait..."
    killall -w aria2c
    ;;
restart)
    echo "Stopping aria2c, please wait..."
    $0 stop
    echo "Start aria2c"
    $0 start
    ;;
*)
    echo "$0 {start|stop|restart|status}"
    ;;
esac
exit

增加脚本运行权限

chmod +x /etc/init.d/aria2

设置aria2服务开机自动运行

update-rc.d aria2 defaults