How to tell which repositories provide which packages?

[Little Girl]

Hey there,

Ralf Mardorf via ubuntu-users wrote:
>Little Girl wrote:

>>https://paste.ubuntu.com/p/2X2NWZkv4m/  
>
>"It's a collection of commands for getting PPA information."
>
>Actually it's a collection of scripts, just not in the sense of a
>file that starts with a #!/bin/sh. However, the combination of
>commands, even by not using them in a file, but directly typed to
>command line, are scripts. Aren't they?

Sure. I just basically wanted to convey that this wasn't intended as
a cohesive script that runs from top to bottom in one fell swoop.
It's a collection of code snippets, instead. Some of them have
placeholders in them, so it's important that they look them over to
see which ones need to be edited before use.

>Regarding the "[:digit:]", maybe somebody knows the convention for
>Ubuntu/Debian package versioning? Must the first char of the
>versioning always be a number? Or else, is it allowed to use a letter
>or any other char as first versioning char?

It looks like it must be an unsigned integer, but it can be ommitted
and, if so, is assumed to be a zero:

https://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-version

-- 
Little Girl

There is no spoon.