Command to list installed apps?

[gobuntu]

Hi dear forum members.
I want to upgrade from Ubuntu 7.10 which has worked just fine till now, since it came out, to the latest Ubuntu version.

I want to do a new total installation of the latest Ubuntu version, but would like to have a file that lists the names of the applications that I have installed in 7.10 so that I can add them on a one by one, selective basis, on the latest version.

I already have a backup of the existing system, in case I need to go back to it. I have all data on a separate partition, which will stay as is. All partitions will stay same size.

So all I need (I think) is a list of all the installed applications as is. Is that possible, and please, how?

Thanks!

[Katalog]

I suppose you could go into the terminal and type "cd /usr/bin", hit enter and then type "ls" and it should give you a list of every single binary on your system. It would probably tell you more than you want to know, but it would most certainly give you a list of almost everything you have installed on your machine.

[gobuntu]

Thanks Katalog.

Actually, I figured out how with this console command:
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dpkg --list > 'FileName'
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dpkg -- (just with the two hyphens, lists the installed packages to the console), otherwise, it pipes the output to 'FileName' of one's choice.

I think there may be some apps that are not installed and managed conventionally that don't show up, so, if anyone has some more tips, please do provide them.

Thanks everyone!