[Node.js] Mac 重新安裝npm

今天發現要使用npm install整個噴出異常!!
好像是node的版本太久沒更新了，npm指令整個爛掉。
所以就一直重裝很多次才正常..

系統需求

安裝npm可以透過Mac的套件管理工具homebrew

$ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go/install)"

安裝完後可以使用doctor來測試brew是否可正常執行

$ brew doctor

Your system is ready to brew.

前情提要 npm

npm is Node's package manager. It is now installed automatically with Node.js so there is no need to do a separate installation.


意思就是npm是一個node.js的套件管理的工具，裝完node.js就會自動安裝好npm了，

不過在Mac下面都是用homebrew這個套件管理工具來安裝node.js

移除Node.js

用brew裝的就用brew uninstall

brew uninstall node

一般來說node套件會預設裝在/usr/local/bin，所以請將以下的目錄都要砍掉

rm -rf /usr/local/bin/node
rm -rf /usr/local/bin/npm
rm -rf /usr/local/bin/node_modules

不行的話，就多操作幾次XD..

安裝Node.js

brew install node

裝完後打個npm就會噴出以下的資訊

Usage: npm

where is one of:

    add-user, adduser, apihelp, author, bin, bugs, c, cache,

    completion, config, ddp, dedupe, deprecate, docs, edit,

    explore, faq, find, find-dupes, get, help, help-search,

    home, i, info, init, install, isntall, issues, la, link,

    list, ll, ln, login, ls, outdated, owner, pack, prefix,

    prune, publish, r, rb, rebuild, remove, repo, restart, rm,

    root, run-script, s, se, search, set, show, shrinkwrap,

    star, stars, start, stop, submodule, tag, test, tst, un,

    uninstall, unlink, unpublish, unstar, up, update, version,

    view, whoami

npm -h     quick help on

npm -l           display full usage info

npm faq          commonly asked questions

npm help   search for help on

npm help npm     involved overview

打完收工....

參考資料

http://shapeshed.com/setting-up-nodejs-and-npm-on-mac-osx/