Re: 'rpm --freshen': dpkg Equivalent?

From: Joris Huizer (jorishuizer_at_planet.nl)
Date: 11/07/04

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    Date: Sun, 07 Nov 2004 17:25:41 +0100
To: debian-user <debian-user@lists.debian.org>

    Kenneth Jacker wrote:
    > How can I use 'dpkg' to install a new .deb, but *only* if the package
    > is already on a machine? With RPM, you can use the "freshen" option
    > ("-F" or "--freshen"). But how with 'dpkg'?
    >
    > In other words:
    >
    > o If the package is already installed, then update it
    >
    > o If the package is not installed, do nothing (do *not* install it)
    >
    >
    > Sorry if this is obvious, but I can't seem to find out how to do it!
    >
    > Thanks,

    apt-get upgrade/apt-get dist-upgrade (after apt-get update) will upgrade
    all packages; why would you just one specific package to be updated?

    HTH,

    Joris 

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