RVM baby 版本管理器

RVM baby 版本管理器

安装 RVM baby 版本管理器

In case of problems: https://rvm.io/help and https://twitter.com/rvm_io[/code] 
说明安装成功

查看当前信息
$ source ~/.bashrc

$source ~/.bash_profile

$rvm -v

打印代码：

rvm 1.27.0 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]


用RVM升级Ruby查看当前ruby版本
$ruby -v

$rvm list known

打印代码

# MRI Rubies
[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-p330]
[ruby-]1.9.3[-p551]
[ruby-]2.0.0[-p648]
[ruby-]2.1[.8]
[ruby-]2.2[.4]
[ruby-]2.3[.0]
[ruby-]2.2-head
ruby-head

# for forks use: rvm install ruby-head-<name> --url https://github.com/github/ruby.git --branch 2.2

# JRuby
jruby-1.6[.8]
jruby-1.7[.23]
jruby[-9.0.5.0]
jruby-head

# Rubinius
rbx-1[.4.3]
rbx-2.3[.0]
rbx-2.4[.1]
rbx[-2.5.8]
rbx-head


安装ruby 2.2.2 版本
$rvm install 2.2.2

如果打印：

…  ruby-2.2.2 - #validate archive
ruby-2.2.2 - #extract
ruby-2.2.2 - #validate binary
ruby-2.2.2 - #setup
ruby-2.2.2 - #gemset created /Users/abc/.rvm/gems/ruby-2.2.2@global
ruby-2.2.2 - #importing gemset
/Users/abc/.rvm/gemsets/global.gems..............................
ruby-2.2.2 - #generating global wrappers........
ruby-2.2.2 - #gemset created /Users/abc/.rvm/gems/ruby-2.2.2
ruby-2.2.2 - #importing gemsetfile /Users/abc/.rvm/gemsets/default.gems
　　evaluated to empty gem list
ruby-2.2.2 - #generating default wrappers........
Updating certificates in '/etc/openssl/cert.pem'.
mkdir: /etc/openssl: Permission denied
mkdir -p "/etc/openssl" failed, retrying with sudo
LiuWenqiang password required for 'mkdir -p /etc/openssl':
and sudo mkdir worked


则说明安装成功了

打印代码：

Done with Command Line Tools (OS X 10.11) for Xcode
Done.
==> /usr/bin/sudo /bin/rm -f /tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress
==> Installing the Command Line Tools (expect a GUI popup):
==> /usr/bin/sudo /usr/bin/xcode-select --install
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
Failed during: /usr/bin/sudo /usr/bin/xcode-select --install
Requirements installation failed with status: 1.


则失败。

如果安装失败，解决方案：

$ sudo xcode-select –switch /Library/Developer/CommandLineTools/

Password: （输入电脑权限密码）

$ git

usage: git [--version] [--help] [-C <path>] [-c name=value]

[--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]

[-p | --paginate | --no-pager] [--no-replace-objects] [--bare]

[--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]

<command> [<args>]


第二个问题就解决了

然后再重新执行：安装2.2.2版本 步骤 就可以解决

查看当前ruby 版本
$ruby -v

ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-darwin14]


现在ruby版本已经是2.2.2了

继续安装 CocoaPods
$sudo gem install cocoa pods

$sudo gem install -n /usr/local/bin cocoapods

$pod setup

更新 gem
$ sudo gem update –system