On Fri, May 03, 2019 at 03:46:50AM +0200, Emanuel Berg wrote:
> David Wright wrote:
>
> > $ dpkg-query -W -f '^Package: ${Package} \n' | grep --file=- "$Unique1" |
> > sort
> Also I don't understand where the argument
> goes? Where is ${Package} defined, even tho it
> didn't (for me) even get that far?
It's in single quotes, not double quotes. Therefore it is NOT expanded
by the shell. The shell passes that string verbatim to the dpkg-query
command.
So the question becomes, what does ${Package} mean to dpkg-query?
Therefore, we consult the man page:
Package information can be included by inserting variable
references to package fields using the syntax
“${field[;width]}”. [...]
The following fields are recognized [...]:
[...]
Maintainer
Origin
Package
Pre-Depends
[...]
And there you go.
