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apt-get update / install

Hi all,

Quote:

Your computer has a list (such as a catalog) that contains all the available software that the ubuntu servers have available...

This (quoted from here) seems to say that there is a file on my Ubuntu server which lists all available packages (with their version numbers). If so can anyone please tell me where I can find / view this file?

And anyway after running $ apt-get update can I check what version of a particular package would be installed by $ apt-get install ?

Thanks...

I personally use "apt-cache policy" for example:

Code:

apt-cache policy cowsay

If you want a list of all packages installed with their version number you can use the following:

Code:

dpkg -l | grep '^ii'