How do I see aptitude "Search patterns"? (~n, ~i, ~U,..)

Question

While opening man aptitude I see this in many places:

(see the section “Search Patterns” in the aptitude reference manual).

How do I open this reference manual? I want to find patterns like ~i (search for installed packages), ~U search for upgradeable packages.

Answer 1

There is an online version, or offline in the aptitude-doc-en package that will put the docs in /usr/share/doc/aptitude/html (you also have for example aptitude-doc-fr for French documentation, and others).