Don't Google it, use instead the manual and in addition the inline help from command line tool's.
calibre manual:
https://manual.calibre-ebook.com/gen...redb.html#list
Inline help for calibredb list via command line (as for all command line tool from calibre):
calibredb list --help
As fare I know there is no direct information for a book file including the path information. But this isn't a real problem. Create first a custom field from type "custom build from other columns":
Lookup name: pathfilename
Column heading: Path&FileNameAll
template: {:'formats_paths()'}
Sort/search: Text
Now you can use the commandline tool calibredb to fetch the informations you need. Example (output into file testpath.txt):
calibredb list --fields=author,title,*pathfilename >testpath.txt
Remark:
The template extract all book files for a book entry, this means if you have more then one format for a book you will get for each format a file and path information.
Hope this will help you a little for your problem.
Edit: There was a little typo for authors. The correct string is:
calibredb list --fields=authors,title,*pathfilename >testpath.txt