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Hariharan
Hariharan

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How to view manually installed packages in ubuntu

Hi all in the blog post we are going to list down the packages we installed manually.

why we need that information?
when we set up a fresh Linux Distro or migrate existing or converting Linux installation into a docker image that will very helpful to us

how we are going to get this thing done?
using the aptitude (high-level package manager command-line interface)

install aptitude first if not present in your system

sudo apt install aptitude 
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wait a few seconds to complete installation after completing the installation run the following command to find the manually installed packages after the initial run of the

comm -23 <(aptitude search '~i !~M' -F '%p' | sed "s/ *$//" | sort -u) <(gzip -dc /var/log/installer/initial-status.gz | sed -n 's/^Package: //p' | sort -u)
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Voila we did it!

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