Quick search for installed dpkg, flatpak, snap packages

find_installed_software.sh

#!/bin/bash
BoldGreen='\033[1;32m'
NoColour='\033[0m'

## Parameter specified?
if [ $# -eq 0 ]; then
    echo -e "No package specified"
  exit 1
fi

package="$1"

printf "${BoldGreen}\nAPT\n${NoColour}"
dpkg -l | grep ${package} || echo "none"

printf "${BoldGreen}\nFLATPAK\n${NoColour}"
flatpak list | grep ${package} || echo "none"

printf "${BoldGreen}\nSNAP\n${NoColour}"
snap list | grep ${package} || echo "none"