持续记录在brew 安装软件过程中遇到的问题；

文章目录

1. brew install 每次出现更新检测2. brew link graphviz 错误2.1 总结2.2 过程

1. brew install 每次出现更新检测

安装前输入：export HOMEBREW_NO_AUTO_UPDATE=true

2. brew link graphviz 错误

2.1 总结

执行link程序：brew link XXX失败则执行：brew link --overwrite XXX对于顽固份子：sudo rm /usr/local/share/man/man1/circo.1 后重新执行brew link XXX

2.2 过程

brew install graphviz 提示：

Warning: graphviz 2.44.0 is already installed, it’s just not linked

You can usebrew link graphvizto link this version.

按照提示执行 brew link graphviz：

Linking /usr/local/Cellar/graphviz/2.44.0…

Error: Could not symlink share/man/man1/ccomps.1

Target /usr/local/share/man/man1/ccomps.1

already exists. You may want to remove it:

rm ‘/usr/local/share/man/man1/ccomps.1’

To force the link and overwrite all conflicting files:

brew link --overwrite graphviz

To list all files that would be deleted:

brew link --overwrite --dry-run graphviz

说是有文件应存在了，需要删除后重新安装，先list出来到底有多少文件，brew link --overwrite --dry-run graphviz：

一页竟然装不下，这要删除到什么时候去，仔细一看提示中有个：brew link --overwrite graphviz，果断执行之：

Linking /usr/local/Cellar/graphviz/2.44.0… 109 symlinks created