2

Is it possible to export a list of packages from a (Debian) server,

so I can reuse this list and simply hit apt-get install <exported_package_list>

on a different server?

Can I also pipe a textfile to apt-get like apt-get install << list.txt?

3

Take a look at the --get-selections and --set-selections options to dpkg.

You export a list of current selections using dpkg --get-selections > my-selections.

In order to restore the selections you first need to run dpkg --set-selections < my-selections and then apt-get dselect-upgrade to actually install the packages. Be aware that this will only restore the installed packages, but not any configuration or choices made during the install.

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