刚刚使用 Ubuntu 12.04 配置了一个新的 Rackspace 实例，并从他们的 github 中下载了 rbenv 并安装了它。
执行时出现以下错误 . ./~bashrc
$ . ~/.bashrc
sh: 18: /home/deployer/.bashrc: shopt: not found
sh: 26: /home/deployer/.bashrc: shopt: not found
sh: 110: /home/deployer/.bashrc: shopt: not found
sh: 28: /etc/bash_completion: [[: not found
sh: 34: /etc/bash_completion: [[: not found
sh: 51: /etc/bash_completion: Bad substitution
这是我的 .bashrc（用于用户部署者），我添加的唯一内容是顶部的 rbenv 位。
$ cat .bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
if [ -d "${RBENV_ROOT}" …