列出ruby版本
console:~$ rvm list
rvm rubies
ruby-2.0.0-p481 [ i686 ]
# => - current
# =* - current && default
# * - default
尝试使用特定版本的ruby
console:~$ rvm use 2.0.0
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.
当前回答
我的环境是OSX优胜美地。有同样的问题....通过添加以下内容来解决
1)编辑并添加以下一行到.bash_profile文件。
[[-s "$HOME/。Rvm /scripts/ Rvm "]] &&。“$ HOME / .rvm /脚本/区”
2)重启终端，重试RVM命令
其他回答
如果RVM安装了专用的ubuntu RVM安装程序https://github.com/rvm/ubuntu_rvm, RVM脚本的路径将不同于/usr/share/rvm/scripts/rvm.因此，要将它添加到你的.bashrc中，运行以下命令:
echo 'source "/usr/share/rvm/scripts/rvm"' >> ~/.bashrc
对我来说，在Ubuntu(18.08)中，我在.bashrc中添加了下面的行，它可以工作。
source /home/username/.rvm/scripts/rvm
请加上这一行。
错误是由于rvm没有像登录shell那样运行。因此试试下面的命令:
/bin/bash --login
你可以在终端登录shell时立即运行rvm命令。
Usually this is caused by shell initialization files. Search for PATH=... entries.
You can also re-add RVM to your profile by running: rvm get stable --auto-dotfiles
To fix it temporarily in this shell session run: rvm use ruby-2.6.5
To ignore this error add "rvm_silence_path_mismatch_check_flag=1" to your "~/.rvmrc" file.
输入bash——从终端登录。然后给rvm使用2.0.0
