使用 Homebrew 安装 Ruby
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Installing Ruby with Homebrew
提问by cchiera
I installed Ruby with Homebrew:
我用 Homebrew 安装了 Ruby：
brew install ruby
Under "Caveats" it said:
在“注意事项”下，它说：
NOTE: By default, gem installed binaries will be placed into:
/usr/local/Cellar/ruby/1.9.3-p194/binYou may want to add this to your PATH.
注意：默认情况下，gem 安装的二进制文件将放置在：
/usr/local/Cellar/ruby/1.9.3-p194/bin您可能希望将此添加到您的 PATH。
What does that mean and how can I add it to my "path"? Assuming it has to do with a bash_profile but new to this.
这是什么意思，我如何将它添加到我的“路径”中？假设它与 bash_profile 有关系，但这是新的。
回答by Kyle
in ~/.bash_profileadd the following line
在~/.bash_profile添加以下行
export PATH=/usr/local/Cellar/ruby/1.9.3-p194/bin:$PATH
When you're done, close your terminal and re-open it. You should be fine.
完成后，关闭终端并重新打开它。你应该没事。
Alternatively, you can execute the follwing in each open shell instead of closing/re-opening:
或者，您可以在每个打开的 shell 中执行以下操作，而不是关闭/重新打开：
source ~/.bash_profile
Note:I highly recommend installing ruby via rvmor rbenvso you can manage multiple ruby versions and use gemsets.
注意：我强烈建议通过rvm或rbenv安装 ruby，这样你就可以管理多个 ruby 版本并使用 gemset。
回答by pje
Add this line to your .profile (or .bash_profile, .bashrc, .zshrc, etc):
将此行添加到您的 .profile（或 .bash_profile、.bashrc、.zshrc 等）：
export PATH=/usr/local/opt/ruby/bin:$PATH
This is an up-to-date version of Kyle's answer. As of May 2014, brew info rubyprints:
这是凯尔回答的最新版本。截至 2014 年 5 月，brew info ruby印刷品：
By default, gem installed executables will be placed into:
默认情况下，gem 安装的可执行文件将放置在：
/usr/local/opt/ruby/bin
You may want to add this to your PATH. After upgrades, you can run
您可能希望将此添加到您的 PATH。升级后，您可以运行
gem pristine --all --only-executables
...to restore binstubs for installed gems.
...恢复已安装 gem 的 binstubs。
回答by Pawe? Go?cicki
Install ruby:
安装红宝石：
brew install ruby
I'd recommend setting $PATH, $GEM_PATH and $GEM_HOME. For latest Ruby it's:
我建议设置 $PATH、$GEM_PATH 和 $GEM_HOME。对于最新的 Ruby，它是：
export PATH=/usr/local/opt/ruby/bin:$PATH
export GEM_HOME=/usr/local/opt/ruby/lib/ruby/gems/2.6.0
export GEM_PATH=/usr/local/opt/ruby/lib/ruby/gems/2.6.0
Put them in something like ~/.bash_profile.
把它们放在像~/.bash_profile.
And then to verify:
然后验证：
type -a ruby
> ruby is /usr/local/opt/ruby/bin/ruby
> ...
ruby -v
> ruby 2.6.0p0 (2018-12-25 revision 66547) [x86_64-darwin18]
gem list
> *** LOCAL GEMS ***
>
> did_you_mean (1.3.0)
> minitest (5.11.3)
> ...
回答by Don Johnson
Quick fix:
快速解决：
Open /etc/paths.
打开 /etc/paths。
Change the order of lines(highest priority on top).
/usr/local/bin
/usr/local/sbin
/usr/bin
/bin
/usr/sbin
/sbin
回答by mtgto
In ruby 2.6.x, brew info rubysays:
在 ruby 2.6.x 中，brew info ruby说：
By default, binaries installed by gem will be placed into:
/usr/local/lib/ruby/gems/2.6.0/bin
You may want to add this to your PATH.
ruby is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.
If you need to have ruby first in your PATH run:
echo 'export PATH="/usr/local/opt/ruby/bin:$PATH"' >> ~/.zshrc
For compilers to find ruby you may need to set:
export LDFLAGS="-L/usr/local/opt/ruby/lib"
export CPPFLAGS="-I/usr/local/opt/ruby/include"
I don't want to update XXshrc whenever ruby is updated. My zshrc is:
我不想在 ruby 更新时更新 XXshrc。我的 zshrc 是：
if [ -d "/usr/local/opt/ruby/bin" ]; then
export PATH=/usr/local/opt/ruby/bin:$PATH
export PATH=`gem environment gemdir`/bin:$PATH
fi
