On Wed, Oct 08, 2025 at 03:55:16PM +0000, fxkl47BF@protonmail.com wrote: > for example > what's it's purpose Here's a good explanation: https://www.debian.org/doc/manuals/debian-faq/pkg-basics.en.html#virtual > $ apt show pdf-viewer > Package: pdf-viewer > State: not a real package (virtual) > N: Can't select candidate version from package pdf-viewer as it has no > candidate > N: Can't select versions from package 'pdf-viewer' as it is purely virtual > N: No packages found You can install *any* pdf-viewer (e.g. xpdf, okular, you name it), and it would satisfy the dependecies of packages which need "a pdf viewer", but don't care which one. Cheers -- t
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