I installed the package but can't figure out how to use/start it. What I'm am looking for is a interactive help/docs for sqlite3 I assumed that what this package does but I don't know how to start it.
According to the description shown in apt-cache show sqlite3-doc:
This package contains the documentation that is also available on
the SQLite homepage.
And appropriately enough, apt-file show sqlite3-doc will tell you that the package contains whole lot of .html pages stored in /usr/share/doc/sqlite3-doc directory. Now, you can either read those via the browser, or alternatively, as explained in a related answer, you can install dwww package, open the browser and point to http://localhost/dwww. This requires enabling cgi via sudo a2enmod cgi and restarting apache service sudo systemctl restart apache2 (source).
You can just point your web browser at the index page
and navigate the documentation from there.
According to the description shown in
apt-cache show sqlite3-doc:And appropriately enough,
apt-file show sqlite3-docwill tell you that the package contains whole lot of.htmlpages stored in/usr/share/doc/sqlite3-docdirectory. Now, you can either read those via the browser, or alternatively, as explained in a related answer, you can installdwwwpackage, open the browser and point tohttp://localhost/dwww. This requires enablingcgiviasudo a2enmod cgiand restarting apache servicesudo systemctl restart apache2(source).