List info on installed applications (Read only)

installed-info.sh

#!/bin/bash

# Download and run:
# curl -o- [raw gist url] | bash

function list_installed () {
  comm -23 \
  <(apt-mark showmanual | sort -u) \
  <(gzip -dc /var/log/installer/initial-status.gz | sed -n 's/^Package: //p' | sort -u)
}

echo "# Sources:"
grep -r --include '*.list' '^deb ' /etc/apt/ | \
grep -v 'ubuntu.com' | \
grep -v 'launchpad.net/elementary-os' | \
grep -v 'elementary.io' | \
sed -re 's/^\/etc\/apt\/sources\.list((\.d\/)?|(:)?)//' \
-e 's/(.*\.list):/\[\1\] /' \
-e 's/deb http:\/\/ppa.launchpad.net\/(.*?)\/ubuntu .*/ppa:\1/'

echo ""
echo "# Manually installed packages:"
list_installed

echo ""
echo "sudo apt install $(list_installed | tr '\n' ' ')"

echo ""
echo "# Snaps:"
snap list

echo ""
echo "Install:"
echo "$ snap install [app id]"

echo ""
echo "# Flatpak remotes:"
flatpak remotes -d

echo ""
echo "Add remote:"
echo "$ flatpak remote-add --if-not-exists [name] [url]"

echo ""
echo "# Flatpak installed:"
flatpak list -d

echo ""
echo "Install: "
echo "$ flatpak install [remote] [app id]"