RVM：可以设置默认ruby版本但不能设置当前版本

Question

问题：尽管默认 ruby 设置为 ruby 2.2.2。当我打开终端时 ruby 2.2.1 被加载。如何确保 ruby 2.2.2 在我打开新终端时加载。

问题表述不同：我无法将 current && default 设置为 ruby 2.2.2，除非我卸载 ruby 2.2.1。这是我输入 rvm list

时得到的结果

   ~ $ rvm list

    rvm rubies

       ruby-1.8.7-head [ x86_64 ]
       ruby-1.8.7-p374 [ x86_64 ]
       ruby-1.9.3-p551 [ x86_64 ]
       ruby-2.0.0-p353 [ x86_64 ]
       ruby-2.2.0 [ x86_64 ]
    => ruby-2.2.1 [ x86_64 ]
     * ruby-2.2.2 [ x86_64 ]
       ruby-2.2.4 [ x86_64 ]

    # => - current
    # =* - current && default
    #  * - default

我希望 current && default 为 ruby-2.2.2。如果我输入 rvm use default 我会得到如下结果（这就是我想要的）。

~ $ rvm list

rvm rubies

   ruby-1.8.7-head [ x86_64 ]
   ruby-1.8.7-p374 [ x86_64 ]
   ruby-1.9.3-p551 [ x86_64 ]
   ruby-2.0.0-p353 [ x86_64 ]
   ruby-2.2.0 [ x86_64 ]
   ruby-2.2.1 [ x86_64 ]
=* ruby-2.2.2 [ x86_64 ]
   ruby-2.2.4 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

如何确保每次打开终端时环境 current && default 设置为 ruby 2.2.2，如上所示？一个观察：如果我卸载ruby 2.2.1，它默认是上述情况。我有一些项目需要 ruby 2.2.1，但我不能那样做。

我该怎么办？

顺便说一句 which ruby 给出了以下输出：

~ $ which ruby
/home/rk/.rvm/rubies/ruby-2.2.1/bin/ruby

这是一个类似的问题，但尚未得到解答： RVM default is 2.1.1 but 2.1.2 is loaded initially

这是 rvm info 的输出：

~ $ rvm info

ruby-2.2.1:

  system:
    uname:       "Linux X200 4.4.0-36-generic #55~14.04.1-Ubuntu SMP Fri Aug 12 11:49:30 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux"
    system:      "ubuntu/14.04/x86_64"
    bash:        "/bin/bash => GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)"
    zsh:         " => not installed"

  rvm:
    version:      "rvm 1.26.11 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]"
    updated:      "1 year 3 months 21 days 22 hours 56 minutes 31 seconds ago"
    path:         "/home/rk/.rvm"

  ruby:
    interpreter:  "ruby"
    version:      "2.2.1p85"
    date:         "2015-02-26"
    platform:     "x86_64-linux"
    patchlevel:   "2015-02-26 revision 49769"
    full_version: "ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]"

  homes:
    gem:          "/home/rk/.rvm/gems/ruby-2.2.1"
    ruby:         "/home/rk/.rvm/rubies/ruby-2.2.1"

  binaries:
    ruby:         "/home/rk/.rvm/rubies/ruby-2.2.1/bin/ruby"
    irb:          "/home/rk/.rvm/rubies/ruby-2.2.1/bin/irb"
    gem:          "/home/rk/.rvm/rubies/ruby-2.2.1/bin/gem"
    rake:         "/home/rk/.rvm/rubies/ruby-2.2.1/bin/rake"

  environment:
    PATH:         "/home/rk/.rvm/gems/ruby-2.2.1/bin:/home/rk/.rvm/gems/ruby-2.2.1@global/bin:/home/rk/.rvm/rubies/ruby-2.2.1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/rk/.rvm/bin:/home/rk/.rvm/bin:/usr/local/heroku/bin:/home/rk/android-studio/bin:/home/rk/.rvm/bin"
    GEM_HOME:     "/home/rk/.rvm/gems/ruby-2.2.1"
    GEM_PATH:     "/home/rk/.rvm/gems/ruby-2.2.1:/home/rk/.rvm/gems/ruby-2.2.1@global"
    MY_RUBY_HOME: "/home/rk/.rvm/rubies/ruby-2.2.1"
    IRBRC:        "/home/rk/.rvm/rubies/ruby-2.2.1/.irbrc"
    RUBYOPT:      ""
    gemset:       ""

Answer 1

对我来说，按照命令完成工作

rvm --default use 2.2.2

您可能在登录 shell 时遇到问题，需要使用 /bin/bash --login 作为命令

Answer 2

我通过将 Rails 应用程序中的 .ruby-version 文件更新为您尝试使用的较新 ruby 版本（2.2.2 in你的情况）

RVM：可以设置默认ruby版本但不能设置当前版本

RVM: Can set the default ruby version but cannot set the current version

ruby

rvm