我试图从终端下载 VirtualBox。现在，当我尝试更新或输入命令时，它会读出：
tyiese@penguin:~$ apt-get update
E: Malformed entry 1 in list file /etc/apt/sources.list.d/virtualbox.list (Component)
E: The list of sources could not be read.
tyiese@penguin:~$ rm /etc/apt/sources.list.d/virtualbox.list
rm: remove write-protected regular file '/etc/apt/sources.list.d/virtualbox.list'? Y
rm: cannot remove '/etc/apt/sources.list.d/virtualbox.list': Permission denied
我确实尝试删除该文件 - 我认为 - 但是，正如您所看到的那样，它未被接受。