在Mac OSX Yosemite上，我已经成功安装了节点：
# sudo gem install node
Fetching: eventmachine-1.0.7.gem (100%)
Building native extensions. This could take a while...
Successfully installed eventmachine-1.0.7
Fetching: node-0.0.2.gem (100%)
Successfully installed node-0.0.2
Parsing documentation for eventmachine-1.0.7
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for lib/fastfilereaderext.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for lib/rubyeventmachine.bundle, skipping
Installing ri documentation for eventmachine-1.0.7
Parsing documentation for node-0.0.2
Installing ri documentation for node-0.0.2
2 gems installed
我在已安装的gem列表中看到了它：
# gem list --local
*** LOCAL GEMS ***
activesupport (3.2.17)
bigdecimal (1.2.0)
CFPropertyList (2.2.8)
claide (0.7.0, 0.5.0)
cocoapods (0.35.0, 0.32.1)
cocoapods-core (0.35.0, 0.32.1)
cocoapods-downloader (0.8.1, 0.5.0)
cocoapods-plugins (0.3.2)
cocoapods-trunk (0.4.1)
cocoapods-try (0.4.3, 0.2.0)
colored (1.2)
escape (0.0.4)
eventmachine (1.0.7)
fuzzy_match (2.0.4)
i18n (0.7.0, 0.6.9)
io-console (0.4.2)
json (1.7.7)
json_pure (1.8.1)
libxml-ruby (2.6.0)
minitest (5.5.1, 4.3.2)
molinillo (0.1.2)
multi_json (1.9.2)
nap (0.8.0, 0.7.0)
netrc (0.7.8)
node (0.0.2)
nokogiri (1.5.6)
open4 (1.3.3)
psych (2.0.0)
rake (0.9.6)
rdoc (4.0.0)
sqlite3 (1.3.7)
test-unit (2.0.0.0)
thread_safe (0.3.4)
tzinfo (1.2.2)
xcodeproj (0.20.2, 0.16.1)
但是，当我尝试使用它时（相同的app.js文件在Windows 7上对我来说运行良好）-未找到Node.js解释器：
# node app.js
-bash: node: command not found
# sudo node app.js
sudo: node: command not found
在/ usr / local / bin下也没有节点文件。
请告诉我，我如何开始使用已安装的Node.js？
我感觉这里缺少一点点。
这颗宝石是对node.js项目的所有这些炒作的笑话。
它仅包括eventmachine gem，并为其添加新的别名。
https://github.com/rafaelfranca/node
跑
sudo apt-get update
sudo apt-get install nodejs
或者
brew update
brew install node
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我来说两句