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我在 macOS catalina 中安装 mtr:
brew install mtr
但是当我使用这个命令时:
/usr/local/sbin ⌚ 22:53:15
$ mtr
zsh: command not found: mtr
然后我尝试链接:
/usr/local/sbin ⌚ 22:52:50
$ brew link mtr
Warning: Already linked: /usr/local/Cellar/mtr/0.93_1
To relink:
brew unlink mtr && brew link mtr
为什么链接失效了?