failure of adept and all installers in Kubuntu

[abelito8]

Hi everybody,

I am new in Linux and I have been trying to install a number of things...somewhere in the process I must have deleted something and I cannot open my adept, package managers or install anything through the terminal...

Here is what the terminal responds when I try ...
Any help? THank you in advance...

abel@abel-laptop:~$ /etc/apt/sources.list
bash: /etc/apt/sources.list: Permission denied
abel@abel-laptop:~$ E: _cache->open() failed
bash: syntax error near unexpected token `('
abel@abel-laptop:~$ sudo apt-get install adept
E: Type 'exit' is not known on line 1 in source list /etc/apt/sources.list.d/pidgin-ppa.list
E: The list of sources could not be read.
abel@abel-laptop:~$ E: _cache->open() failed
bash: syntax error near unexpected token `('
abel@abel-laptop:~$ sudo apt-get install adept
E: Type 'exit' is not known on line 1 in source list /etc/apt/sources.list.d/pidgin-ppa.list
E: The list of sources could not be read.
abel@abel-laptop:~$ sudo apt-get install pidgin
E: Type 'exit' is not known on line 1 in source list /etc/apt/sources.list.d/pidgin-ppa.list
E: The list of sources could not be read.

[reed9]

abel@abel-laptop:~$ /etc/apt/sources.list
bash: /etc/apt/sources.list: Permission denied

You're giving the path to the file, but no operator here. If you're trying to open up your sources.list, you need to indicate a program fist, like so

kwrite /etc/apt/sources.list

If you intend to edit the file, you need to preface kwrite with sudo, for root priveleges.

Speaking of, open up your source.list in kwrite or some other text editor and post it here. Looks like there's just some syntax errors in the file.

[abelito8]

Thank you
I tried but it seems I really did a mess...now I think it is easier to reinstall kubuntu from the disk

In case, for the future, is there any commant that resets kubuntu to a determined point? For instance, I know I made a mess yesterday evening so it would be enough to reject every change that was made after, say, 7pm
and reintroduce the settings that the system had in the afternoon, is that possible?

[rokytnji]

THIS is probably not what you are looking for. It sounds like you are looking for System Restore in Linux.

[abelito8]

I was not aware of this but it is most likely what I will need if I continue exploring linux by myself. Thank a million