当我尝试运行命令时，出现错误“无法找到该命令，因为 '/usr/bin' 未包含在 PATH 环境变量中”

Question

当我尝试在终端中运行时，出现错误The command could not be located because '/usr/bin' is not included in the PATH environment variable。

例如。

jeper@jeper:~$ clear
Command 'clear' is available in '/usr/bin/clear'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
clear: command not found

和喜欢

jeper@jeper:~$ vi
Command 'vi' is available in '/usr/bin/vi'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
vi: command not found

问题是什么以及解决方法是什么？

Answer 1

看起来你的 $PATH 是空的。尝试一下echo $PATH，输出应该与此类似：

/usr/local/sbin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/bin/X11:/usr/local/bin:/usr/bin:/usr/X11R6/bin:/root/bin

如果没有，您应该检查您的.bash_profile或.bashrc. 或者如果使用su username命令切换用户，su - username下次应该使用。