Re: how many Linux machines do you run?

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Hi Tim,
the goal would indeed be currently installed packages, seems to be Debian, as dpkg seems to be here.
may I have the command for  installed packages again?
here it starts with dkg, and I want to be sure this is not a typo.



On Mon, 15 Jul 2024, Tim Chase wrote:

If the server is running an RPM-based distribution, then rpm -qa, but it
will likely print out a list of thousands of packages

Is there a way to copy output into a file?

The usual Unix way:

 $ rpm -qa > list_of_packages.txt

and you can then review "list_of_packages.txt" as you see fit.

If it's a Debian-based system, you can use "dpkg" to obtain similar
info:

 $ dpkg --get-selections > list_of_packages.txt

which will include all installed and installed-but-then-uninstalled
packages.  If you only want the currently-installed packages, you
can use

 $ dpg --get-selections | awk '$NF == "install"{print $1}' > list_of_packages.txt

-tim









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