How to tell which repositories provide which packages?

[Ralf Mardorf]

On Tue, 5 Jan 2021 22:08:08 +0100, Ralf Mardorf wrote:
>On Tue, 5 Jan 2021 22:01:57 +0100, Ralf Mardorf wrote:
>>On Tue, 5 Jan 2021 15:29:17 -0500, Little Girl wrote:  
>>>Hey there,
>>>
>>>Chris Green wrote:
>>>    
>>>>Is there a way to tell from which repositories packages have been
>>>>installed?
>>>>
>>>>I particularly want to see if I have any packages installed from a
>>>>particular PPA.      
>>>
>>>This will give you your installed version, the candidate version
>>>that's available (if any), and the sources for the various versions:
>>>
>>>apt-cache policy PACKAGENAME
>>>
>>>If you're feeling frisky, either of these will probably give you way
>>>more information that you need, but can be good to keep in your back
>>>pocket:
>>>
>>>dpkg -s PACKAGENAME
>>>
>>>apt-cache showpkg PACKAGENAME    
>>
>>It's not that easy.
>>
>>For example
>>
>>  apt-cache policy '*' | grep ppa
>>
>>shows all packages provided by a ppa and to what ppa they belong to

oops, no already here packages and PPAs don't belong together ;)
 
>
>+ all packages containing "ppa" in their name.
>
>>, so
>>'*' must be replaced by the output of a script, that lists only all
>>installed packages, something like e.g.
>>
>>  apt list --installed | cut -d/ -f1
>>
>>However, something like
>>
>>  apt-cache policy $(apt list --installed | cut -d/ -f1) | grep ppa
>>
>>won't do the job, since it does list packages containing 'ppa' that
>>don't belong to any PPAs, while PPAs are shown without the installed
>>packages that belongs to them. It's possible to solve this issue,
>>either by investing some time in writing a script or perhaps by
>>googling for scripts that already do exist.
>>
>>AFAIK there's no command available, that does what the OP wants to
>>get.  
>
>
>



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