When you log in and are assigned a terminal device to type in (the terminal becomes standard input for your shell), you're made the owner of the device, and tty becomes the group owner.

当您登录并分配到一个用来键入的终端设备(该终端成为Shell的标准输入)时，您将被指定为该设备的所有者，而tty成为组所有者。

youdao

When you log in and are assigned a terminal device to type in (the terminal becomes standard input for your shell), you're made the owner of the device, and tty becomes the group owner.

当您登录并分配到一个用来键入的终端设备(该终端成为Shell的标准输入)时，您将被指定为该设备的所有者，而tty成为组所有者。

youdao