问题：

-bash: telnet: command not found

-bash: brew: command not found

解决：

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

brew install telnet

参考：

brew: command not found

转：https://blog.csdn.net/u012251305/article/details/80499271

原文地址：https://www.cnblogs.com/sweet22353/p/9839227.html