Mac 上brew install ruby 成功安装ruby-2.2.3 但是打ruby -v 依然显示2.0.0

Question

如题! 请教是怎么回事？

天蓬老师 · Answer

You can look at it like this

type ruby

The result should be

/usr/bin/ruby

This is ruby2.0 pre-installed on the system

Use brew install ruby and it will be installed in the /usr/local/Cellar/ruby/2.2.3/bin/rubypath

ruby -v
ruby 2.0.0p481 (2014-05-08 revision 45883) [universal.x86_64-darwin14]
@caoh ➜  ~  /usr/local/Cellar/ruby/2.2.3/bin/ruby -v
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-darwin14]

PHP中文网 · Answer

It is best to use RVM to install Ruby on mac, which is convenient for management and does not require sudo permissions

PHP中文网 · Answer

Just configure the environment variables under your bash_profile. .

But still use rvm to install, otherwise you may encounter strange problems: the original system version will appear inexplicably. .

大家讲道理 · Answer

It’s a matter of path, just change your bash path.

ringa_lee · Answer

You first use brew info ruby命令看一下有几个版本
然后用brew switch ruby 版本号就可以切换到指定版本
比如
brew switch ruby 2.2.3
to switch to version 2.2.3
In fact, brew just redoes the soft link

Mac 上brew install ruby 成功安装ruby-2.2.3 但是打ruby -v 依然显示2.0.0

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