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August 29, 2015 13:57
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With the following command you can obtain a list of installed packages, classified by priority:
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| dpkg-query -Wf '${Package;-40}${Priority}\n' | sort -b -k2,2 -k1,1 | |
| So, to remove all unneeded packages (optional and extra), you can execute the following command: | |
| sudo apt-get --simulate purge $(dpkg-query -Wf '${Package;-40}${Priority}\n' | | |
| awk '$2 ~ /optional|extra/ { print $1 }') | |
| I added the --simulate option to be safe and see what apt says. | |
| Strangely, it asks to remove also some required packages: e2fsprogs, util-linux, hostname and upstart, so it is necessary to reinstall these packages. I would download the packages in advance (apt-get download <packages>), to avoid network problems after. | |
| Take also into account that for a working Wifi you can need some optional or extra package, removed in the above procedure. |
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