ubuntu-software --version (return code: 0)
gnome-software 3.20.1
ubuntu-software --help (return code: 0)
Usage:
ubuntu-software [OPTION...]
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gapplication Show GApplication options
--help-gtk Show GTK+ Options
Application Options:
--mode=MODE Start up mode: either ‘updates’, ‘updated’, ‘installed’ or ‘overview’
--search=SEARCH Search for applications
--details=ID Show application details (using application ID)
--details-pkg=PKGNAME Show application details (using package name)
--local-filename=FILENAME Open a local package file
--verbose Show verbose debugging information
--profile Show profiling information for the service
--prefer-local Prefer local file sources to AppStream
--version Show version number
--display=DISPLAY X display to use