查询指定端口的进程ID

1
sudo lsof -i :9000

根据ID杀进程

1
sudo kill -9 716

改hosts

1
2
sudo vi /private/etc/hosts
:wq!

开机启动项

/System/Library/StartupItems /Library/StartupItems

显示隐藏文件

1
2
defaults write com.apple.finder AppleShowAllFiles -bool true
killall Finder

隐藏隐藏文件

1
2
defaults write com.apple.finder AppleShowAllFiles -bool false  
killall Finder