gnome-system-monitor

Application name || desktop file || command
===============================================================
Cheese  ||  cheese.desktop   ||   cheese
Ubuntu Software Center  ||  ubuntu-software-center.desktop   ||   /usr/bin/software-center %u
eBook speaker  ||  eBook-speaker.desktop   ||   eBook-speaker %f
Vuze  ||  azureus.desktop   ||   azureus %f
Mines  ||  gnomine.desktop   ||   gnome-mines
Shotwell  ||  shotwell.desktop   ||   shotwell %U
Synaptic Package Manager  ||  synaptic-kde.desktop   ||   synaptic

#!/usr/bin/python3
import os
dtfile_list = os.listdir("/usr/share/applications")
for item in dtfile_list:
    if item.endswith(".desktop"):
        with open("/usr/share/applications/"+item) as commandlist_source:
            searchlines = commandlist_source.readlines()
        try:
            command_data = ([
                line for line in searchlines if line.startswith("Name=")
                ][0].replace("Name=", "").replace("n", ""),
                            [
                line for line in searchlines if line.startswith("Exec=")
                ][0].replace("Exec=", "").replace("n", ""))
            print(command_data[0]," || ", item, "  ||  ", command_data[1])
        except Exception:
            pass

python3 get_commands.py