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How to list all installed packages

I'd like to output a list of all installed packages into a text file so that I can review it and bulk-install on another system. How would I do this?
package-management apt
by

2 Answers

akshay1995
copy the file /var/lib/apt/extended_states, which is a text file database in this format:


Package: grub-common

Architecture: amd64

Auto-Installed: 0



Package: linux-headers-2.6.35-22-generic

Architecture: amd64

Auto-Installed: 1

Auto-Installed: 0 indicates that the package was expressly installed and is not just a dependency.
sandhya6gczb
The apt tool on Ubuntu 14.04 and above makes this very easy.


apt list --installed

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