adel@Adel:~$ sudo su
[sudo] password for adel:
PATH: command not found
PATH: command not found
Command 'lesspipe' is available in the following places
* /bin/lesspipe
* /usr/bin/lesspipe
The command could not be located because '/usr/bin:/bin' is not included in the PATH environment variable.
lesspipe: command not found
Command 'dircolors' is available in '/usr/bin/dircolors'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
dircolors: command not found
root@Adel:/home/adel#
答案1
在您的 中.bashrc，您有一个Space介于PATH和之间=。这会让 shell 的解析器认为PATH是一个命令。