Linux / Ubuntu - List all installed programs and write to a text file

print_installed_programs.sh

#!/bin/bash
sleep 1
LANG=en_US.UTF-8

outfile="~/installed_programs.txt"

# This Bash command will print all manually installed packages minus the ones that came from your Debian installation (in other words, the packages that you installed with apt install):
echo ' ' >> $outfile
echo 'COMMANDLINE UTILLITIES--------------------------------------------' > $outfile
apt-mark showmanual >> $outfile

echo ' ' >> $outfile
echo '.Desktop List (best) --------------------------------------------' >> $outfile
find /usr/share/applications ~/.local/share/applications -name '*.desktop' >> $outfile

echo ' ' >> $outfile
echo '.Desktop List (all) --------------------------------------------' >> $outfile
dpkg --search '*.desktop' | awk '{print $1}' | sed "s/://" | sort --unique >> $outfile

echo ' ' >> $outfile
echo 'Recent installed --------------------------------------------' >> $outfile
grep " install " /var/log/dpkg.log >> $outfile

echo ' ' >> $outfile
echo 'From history --------------------------------------------' >> $outfile
grep " install " /var/log/apt/history.log >> $outfile

echo ' ' >> $outfile
echo 'FLATPAK--------------------------------------------' >> $outfile
flatpak list >> $outfile

echo ' ' >> $outfile
echo 'SOURCES--------------------------------------------' >> $outfile
cat /etc/apt/sources.list >> $outfile

echo ' ' >> $outfile
echo 'BINARYS--------------------------------------------' >> $outfile
ls /usr/bin >> $outfile





echo ' ' >> $outfile
echo 'NPM--------------------------------------------' >> $outfile
npm list -g --depth 0 >> $outfile

echo ' ' >> $outfile
echo 'PYTHON--------------------------------------------' >> $outfile
pip3 list >> $outfile