How to find what 'new' packages have been installed?

[Chris G]

On Thu, Nov 13, 2008 at 10:04:25AM +0100, Joep L. Blom wrote:
> Mario Vukelic schreef:
> > On Wed, 2008-11-12 at 22:11 -0800, Ray Parrish wrote:
> >> Hello,
> >>
> >> I don't know how to get a list of the programs I've installed in Ubuntu 
> >> myself, but I do know a couple of ways of looking up a list of *all* of 
> >> the software installed on your system.
> > <snip>
> >> cd /usr/share/doc
> > <snip>
> >> ls -a --group-directories-first
> > <snip>
> >> file:///var/lib/dpkg/status
> >>
> >> It's a text file so you can load it in your web browser.
> > 
> > An easier way to get a list of all installed packages is "dpkg
> > -l" (whose output can be redirected into a file or piped into a pager).
> > dpkg -l will also tell you the installed version and a one-liner about
> > the purpose of the package as well as its installation status.
> > 
> > There is also "dpkg --get-selections", but note that the corresponding
> > --set-selections is not recommended to set the installed packages for
> > whole systems, because it will set all packages to "manually installed"
> > 
> > 
> Easiest way:
>   dpkg -l|sort > packagelist.txt
> And read it with gedit. You get an enumerated list of all your packages.
> Thanks Mario. I did it in Fedora with rpm

It's very little use because it's not time ordered.  What I want to
see is what has been added since the system was installed. Looking for
things I've added in a list of 1100 items isn't very easy.

-- 
Chris Green