سلام دوستان .. به نظر شما این فایل در دایرکتوری apt من چی هست و مربوز به چه نرم افزاری است که اجازه نمی دهد سیستم ام آپدیت شود.
hamid@hamid-PC:~$ sudo apt-get upgrade
[sudo] password for hamid:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
N: Ignoring file '20auto-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension