Ruby on Rails:需要在任何Rails命令之前运行 /垃圾箱 /bash

Question

每次我登录服务器时，我都无法运行任何Rails命令，直到运行/bin/bash;请参阅下面的

Last login: Mon Oct 29 16:28:07 2012 from natint3.company.com
[e-mail] [~]# rails -v
/usr/lib64/ruby/site_ruby/1.8/rubygems.rb:926:in `report_activate_error': Could not find RubyGem rails (>= 0) (Gem::LoadError)
    from /usr/lib64/ruby/site_ruby/1.8/rubygems.rb:244:in `activate_dep'
    from /usr/lib64/ruby/site_ruby/1.8/rubygems.rb:236:in `activate'
    from /usr/lib64/ruby/site_ruby/1.8/rubygems.rb:1307:in `gem'
    from /usr/bin/rails:18
[e-mail] [~]# rvm info
ruby-1.9.3-p194:
system:
uname:       "Linux box726.bluehost.com 2.6.32-20120131.55.1.bh6.x86_64 #1 SMP Tue Jan 31 15:43:27 EST 2012 x86_64 x86_64 x86_64 GNU/Linux"
system:      "unknown/libc-2.12/x86_64"
bash:        "/ramdisk/bin/bash => GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)"
zsh:         "/usr/bin/zsh => zsh 4.3.10 (x86_64-redhat-linux-gnu)"
rvm:
version:      "rvm 1.16.17 (stable) by Wayne E. Seguin <[e-mail]>, Michal Papis <[e-mail]> [https://rvm.io/]"
updated:      "4 hours 10 minutes 5 seconds ago"
ruby:
interpreter:  "ruby"
version:      "1.9.3p194"
date:         "2012-04-20"
platform:     "x86_64-linux"
patchlevel:   "2012-04-20 revision 35410"
full_version: "ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]"
homes:
gem:          "/home3/user1/.rvm/gems/ruby-1.9.3-p194"
ruby:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194"
binaries:
ruby:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/ruby"
irb:          "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/irb"
gem:          "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/gem"
rake:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/rake"
environment:
PATH:         "/home3/user1/.rvm/gems/ruby-1.9.3-p194/bin:/home3/user1/.rvm/gems/ruby-1.9.3-p194@global/bin:/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin:/home3/user1/.rvm/bin:/usr/local/jdk/bin:/home3/user1/perl5/bin:/usr/lib64/qt-3.3/bin:/ramdisk/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11R6/bin:/home3/user1//ruby/gems/bin:/home3/user1//ruby/gems:/home3/user1/bin"
GEM_HOME:     "/home3/user1/.rvm/gems/ruby-1.9.3-p194"
GEM_PATH:     "/home3/user1/.rvm/gems/ruby-1.9.3-p194:/home3/user1/.rvm/gems/ruby-1.9.3-p194@global"
MY_RUBY_HOME: "/home3/user1/.rvm/rubies/ruby-1.9.3-p194"
IRBRC:        "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/.irbrc"
RUBYOPT:      ""
gemset:       ""

[e-mail] [~]#

我跑步/bin/bash之后，我的行为有所不同

[e-mail] [~]# /bin/bash
[e-mail] [~]# rails -v
Rails 3.2.8
[e-mail] [~]# rvm info
RVM is not a function, selecting rubies with 'rvm use ...' will not work.
You need to change your terminal emulator preferences to allow login shell.
Sometimes it is required to use `/bin/bash --login` as the command.
Please visit https://rvm.io/integration/gnome-terminal/ for a example.

system:
system:
uname:       "Linux box726.bluehost.com 2.6.32-20120131.55.1.bh6.x86_64 #1 SMP Tue Jan 31 15:43:27 EST 2012 x86_64 x86_64 x86_64 GNU/Linux"
system:      "unknown/libc-2.12/x86_64"
bash:        "/ramdisk/bin/bash => GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)"
zsh:         "/usr/bin/zsh => zsh 4.3.10 (x86_64-redhat-linux-gnu)"
rvm:
version:      "rvm 1.16.17 (stable) by Wayne E. Seguin <[e-mail]>, Michal Papis <[e-mail]> [https://rvm.io/]"
updated:      "4 hours 11 minutes 9 seconds ago"
homes:
gem:          "/home3/user1//ruby/gems"
ruby:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194"
binaries:
ruby:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/ruby"
irb:          "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/irb"
gem:          "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/gem"
rake:         "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin/rake"
environment:
PATH:         "/usr/local/jdk/bin:/home3/user1/.rvm/gems/ruby-1.9.3-p194/bin:/home3/user1/.rvm/gems/ruby-1.9.3-p194@global/bin:/home3/user1/.rvm/rubies/ruby-1.9.3-p194/bin:/home3/user1/.rvm/bin:/home3/user1/perl5/bin:/usr/lib64/qt-3.3/bin:/ramdisk/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11R6/bin:/home3/user1//ruby/gems/bin:/home3/user1//ruby/gems:/home3/user1/bin"
GEM_HOME:     "/home3/user1//ruby/gems"
GEM_PATH:     "/home3/user1//ruby/gems:/usr/lib64/ruby/gems/1.8"
MY_RUBY_HOME: "/home3/user1/.rvm/rubies/ruby-1.9.3-p194"
IRBRC:        "/home3/user1/.rvm/rubies/ruby-1.9.3-p194/.irbrc"
RUBYOPT:      ""
gemset:       ""

[e-mail] [~]#

任何人都知道发生了什么，我该如何解决此问题？

谢谢

edit1

这是我的.bashrc和.bash_profile文件内容

[e-mail] [~]# cat ~/.bashrc
# .bashrc
# User specific aliases and functions
# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi
    export HPATH=/home3/user1/
    export GEM_HOME=$HPATH/ruby/gems
    export GEM_PATH=$GEM_HOME:/usr/lib64/ruby/gems/1.8
    export GEM_CACHE=$GEM_HOME/cache
    export PATH=$PATH:$HPATH/ruby/gems/bin
    export PATH=$PATH:$HPATH/ruby/gems  
PATH=$PATH:/home3/user1/.rvm/bin # Add RVM to PATH for scripting
PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
[e-mail] [~]# cat ~/.bash_profile 
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
export PATH
unset USERNAME

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
[e-mail] [~]#

Answer 1

这对我来说似乎是一个路径问题。当您第一次运行rails时，它将在本地rvm复制之前找到全局RubyGems安装。

从命令行运行 /bin/bash后，您将启动一个交互式壳，该外壳来源（执行）~/.bashrc。我的猜测是包含使用登录外壳登录时无法运行的RVM初始化。

看一下~/.bash_profile和~/.bashrc。这是最新的RVM安装程序生成的内容：

$ cat ~/.bashrc
PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
$ cat ~/.bash_login 
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
export NODE_PATH=/usr/local/lib/node_modules
if [ -f ~/.bashrc ]; then
   source ~/.bashrc
fi

如果这是您所拥有的，那么您将以某种方式通过交互式外壳登录而不是登录外壳（如何？）。您应该能够使用source ~/.bash_profile（OS X中的.bash_login）来解决这两个问题。