That is right, apt-get update only updates the list. apt-get upgrade upgrade cur... | Hacker News

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patrickgzill on Sept 4, 2010 | parent | context | favorite | on: Node.js for Server Noobs

That is right, apt-get update only updates the list. apt-get upgrade upgrade currently installed packages to the latest version.

If you want to do it all on one line, "apt-get update && apt-get upgrade" is the answer.

The && means "run the second command only if the first command completes without an error" .

vog on Sept 4, 2010 [–]

Note that on modern Debian systems, aptitude is preferable to apt-get because it has better dependency resolution etc:

    aptitude update && aptitude safe-upgrade

You can also run aptitude without any arguments which starts a nice text UI:

    aptitude

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