当设置错环境变量的时候发现输入各种命令 ls,cd ,,,都不行。连vi也不行。一律报错。The command could not be located because '/usr/bin' is not included in the PATH environment variable.clear: command not found.
直接用系统工具的全路径编辑配置文件。我用的是/usr/bin/sudo /usr/bin/vim /etc/environment
将之前的设置错的环境重新设置,重启机器就好了。