Shell script for getting file lists for deb-package(s) which are going to be installed

Under the hood this script uses Docker to obtain minimal file-system of needed system release and run apt-file list for provided input data. The created Docker images will be named with de- prefix, you can remove them manually later.

Usage scenario is the following: one has a computer with set of installed deb-packages, saved the list of them by running dpkg -l, saved a list of the repositories and now one wants to selectively install this set of packages basing on their contents.

Steps to use:

# get list of packages
dpkg -l > dpkg-l_pc

# get list of repositories
grep ^deb -r /etc/apt --include=*.list --no-filename | sort -u > sources.list_pc

# get list of keys
apt-key list | grep ^pub -A1 | grep "^ " | tr -d ' ' > keys_pc
apt-key list | grep ^pub | awk -F/ '{print $2}' | awk '{print $1}' >> keys_pc

The one should copy all three files dpkg-l_pc, sources.list_pc and keys_pc into in/ directory and run the script:

./debs-examine.sh -d debian -r bullseye -p in/dpkg-l_pc -k in/keys_pc -l in/sources.list_pc

where

• -d (distribution, mandatory) - debian for Debian, ubuntu for Ubuntu;
• -r (release, mandatory) - all versions starting from Debian 6 (squeeze), Ubuntu 12.04 LTS (precise) are supported by script;
• -p (mandatory) - path to full dpkg -l file;
• -k (optional) - path to file with keys for apt-key (separated by newlines);
• -l (optional) - path to sources.list file.

The resulting filelists will be saved in the out/ directory:

• filelists for various repositories (filelist_defarch, filelist_amd64, filelist_i386);
• filelists for backports repositories (filelist_amd64_bpo, filelist_defarch_bpo, filelist_i386_bpo).

These filelists may be grep'ed in any way to suite user needs. And finally one will be able to install only needed deb-packages into the target system.