reinstalling system and packages

[Larry Alkoff]

On 07/09/2011 09:51 PM, Roy Strachan wrote:
> Hi,
>>
>> I need to reinstall ubuntu 10.04 LTS on my machine. But I'd like to
>> record what ubuntu packages are installed so that I can later on
>> reinstall these packages easily. I'm wondering if there is a command
>> to keep track of all the additional packages installed. It is better
>> that this information is dumped into a file so that it can be read
>> some other command to easily reinstall all these packages. Is there
>> such commands for saving the packages info and reinstall the packages?
>>
>> --
>> Regards,
>> Peng
>>
>
>
> This works:
>
> http://www.arsgeek.com/2006/09/19/ubuntu-tricks-how-to-generate-a-list-of-installed-packages-and-use-it-to-reinstall-packages>
>
>

I tried this on my machine.
It does indeed give a list of installed packages.

Would it be possible to sort them in installed order?

Larry