The answer using exec is pretty helpful.
However according to the apt-get manual it's not a good idea to use -q=2 this way (though I have used it for years without problems)
-q, --quiet
Quiet; produces output suitable for logging, omitting progress indicators. More q's will produce more quiet up to a maximum of 2. You can also use -q=# to set the
quiet level, overriding the configuration file. Note that quiet level 2 implies -y, you should never use -qq without a no-action modifier such as -d, --print-uris or
-s as APT may decided to do something you did not expect. Configuration Item: quiet.
I have used a script myself for years, running apt-get the following way:
ssh example.org "apt-get update && apt-get -y upgrade && apt-get -y dist-upgrade && apt-get clean"
Things like puppet and other tools people mentioned sure may work, but it seems like it's overkill for what basically is just mimicking a few commands typed by a human. I believe in using the simplest tool for a specific job, in this case a bash script is about as simple as it gets without losing functionality.