-bash-3.2$ man chgrp | head -1
CHGRP(1) User Commands CHGRP(1)
-bash-3.2$ man chown | head -1
CHOWN(1) User Commands CHOWN(1)
以下内容来自'man 7 man':
1 Commands
Those commands that can be executed by the user from within a shell.
8 System management commands
Commands like mount(8), many of which only root can execute.
为什么普通用户不能使用 CHGRP(1)/CHOWN(1)?据我了解,普通用户无法使用 CHGRP(8)/CHOWN(8)。