(classic)liu-xiao-guo@localhost:~/apps/mosquitto$ snapcraft update
Downloading parts list|                                                                             
(classic)liu-xiao-guo@localhost:~/apps/mosquitto$ sudo apt install snapcraftt
^C^C
(classic)liu-xiao-guo@localhost:~/apps/mosquitto$ sudo apt install snapcraft 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
snapcraft is already the newest version (2.22.1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
(classic)liu-xiao-guo@localhost:~/apps/mosquitto$ snapcraft search           
PART NAME                          DESCRIPTION
checkbox                           Part that supplies the latest stable version of the Checkbox t...
checkbox-dev                       Part that supplies the latest stable version of the Checkbox t...
checkbox-ng-dev                    Part that supplies the latest stable version of the Checkbox t...
checkbox-support-dev               Part that supplies the latest stable version of the Checkbox t...
curl                               A tool and a library (usable from many languages) for client s...
desktop-glib-only                  Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop-gtk2                       Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop-gtk3                       Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop-qt4                        Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop-qt5                        Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop-ubuntu-app-platform        Helpers for qt5 minimal launchers. This one is for ubuntu-app-...
desktop/glib-only                  Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop/gtk2                       Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop/gtk3                       Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop/qt4                        Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
desktop/qt5                        Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers.
dnsmasq                            Network infrastructure swiss-army knife
ffmpeg                             This sets up ffmpeg for projects.
gtkconf                            This sets up the GTK environment for GTK-based projects
indicator-gtk2                     Parts to show app-indicators for gtk2, gtk3, qt4 and qt5.
indicator-gtk3                     Parts to show app-indicators for gtk2, gtk3, qt4 and qt5.
indicator-qt4                      Parts to show app-indicators for gtk2, gtk3, qt4 and qt5.
indicator-qt5                      Parts to show app-indicators for gtk2, gtk3, qt4 and qt5.
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