尝试启动proftpd，没有成功，没有找到proftpd文件路径和proftpd文件本身

Last login: Sun Sep 20 22:20:00 on ttys000

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(base) bogon:~ ivyone$ sudo /etc/init.d/proftpd status
Password:
sudo: /etc/init.d/proftpd: command not found
(base) bogon:~ ivyone$ sudo /Applications/XAMPP/xamppfiles/proftpd status
sudo: /Applications/XAMPP/xamppfiles/proftpd: command not found
(base) bogon:~ ivyone$

可参考：https://www.cnblogs.com/sanyuanempire/p/6182888.html