taoy/sync-packages.md

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Install packages on an old environment to the new environment on Debian GNU/Linux

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sync-packages.md

Install Packages in an old environment to the New Environment on Debian GNU/Linux

At the Old environment, do this: $ sudo dpkg --get-selections "*" > packages.txt
After copy that packages.txt to the New environment, do these following.
1. $ apt-cache dumpavail > tmpdump
2. $ sudo dpkg --merge-avail tmpdump
3. $ sudo dpkg --set-selections < packages.txt
4. $ sudo apt dselect-upgrade
5. $ rm tmpdump

That's all.

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