我正在尝试使用node.js而我正在更改一些变量，而我似乎对终端造成了一些损坏，我无法逆转。
每当我打开终端时，它会说
Last login: Tue Apr 5 19:00:57 on ttys001
-bash: export: `=': not a valid identifier
-bash: export: `/usr/local/Cellar/mongodb/3.2.0': not a valid identifier
-bash: export: `/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/bin': not a valid identifier
-bash: alias: ll: not found
-bash: alias: =: not found
-bash: alias: ls -lahG: not found
env: bash: No such file or directory
-bash: which: command not found
-bash: which: command not found
-bash: which: command not found
-bash: uname: command not found
-bash: ps: command not found
-bash: touch: command not found
Adams-MacBook-Pro:~ adamkatz$
如果我尝试打开bash_profile，它会说：
permission denied
如果我使用sudo命令，它会说：
sudo not found
许多其他命令都会出现此错误。
env: bash: No such file or directory
那么我如何将bash_profile重置为启动位置？
感谢您的帮助