摘要
轉載請注明出處：http://my.oschina.net/uniquejava/blog/491030
brew詳解：http://stackoverflow.com/questions/3987683/homebrew-install-specific-version-of-formula
最終我使用的命令：
1. 查看當前node版本
$ ls -l `which node`
lrwxr-xr-x 1 cyper admin 30 Jul 26 12:09 /usr/local/bin/node -> ../Cellar/node/0.12.7/bin/node
2. 查看已經安裝過的所有版本
$ ls /usr/local/Cellar/node*
/usr/local/Cellar/node:
0.12.7
/usr/local/Cellar/node010:
0.10.40
或者用
➜ ~ $ brew switch node fuck
Error: node does not have a version "fuck" in the Cellar.
Versions available: 0.12.7, 5.3.0
➜ ~ $
然后就可以用
brew unlink node && brew switch node 0.12.7這樣的命令直接切過去了!!!!
3。查看某個node標簽的詳細信息
$ brew info node
或brew info node010
4。如果從第二步的結果中可以找到0.10.40的node，則可以直接switch過去
$ brew switch node010 0.10.40
4. 如果先前沒有安裝0.10的版本，可以查看所有可用的版本，從這里可以找到homebrew/versions/node010，這正是我后面安裝所需要的版本。
$brew search node
5. 直接安裝會提示必須先unlink現有的符號連接
$ brew unlink node
6. unlink后再安裝就開始下載並安裝了。
$ brew install homebrew/versions/node010
==> Installing node010 from homebrew/homebrew-versions
==> Downloading https://homebrew.bintray.com/bottles-versions/node010-0.10.40.yosemite.bottle.tar.gz
7. 查看node
$ node -v
0.10.40
###版本切換測試
$ brew unlink node010 Unlinking /usr/local/Cellar/node010/0.10.40... 6 symlinks removed $ brew switch node 0.12.7 Cleaning /usr/local/Cellar/node/0.12.7 6 links created for /usr/local/Cellar/node/0.12.7 $ brew unlink node Unlinking /usr/local/Cellar/node/0.12.7... 7 symlinks removed $ brew switch node 0.10.40 Error: node does not have a version "0.10.40" in the Cellar. Versions available: 0.12.7 $ brew switch node010 0.10.40 Cleaning /usr/local/Cellar/node010/0.10.40 5 links created for /usr/local/Cellar/node010/0.10.40 $ node -v v0.10.40
8. 如果是全新安裝：
先執行brew search node
然后執行brew install homebrew/versions/node010
9. brew設置http代理：
執行man brew再搜索proxy就可以找到解決辦法
tools can download via a proxy. It's common for these tools to read proxy parameters from environment variables.
For the majority of cases setting http_proxy is enough. You can set this in your shell profile, or you can use it before a brew command:
http_proxy=http://<host>:<port> brew install foo
If your proxy requires authentication:
http_proxy=http://<user>:<password>@<host>:<port> brew install foo