To use gnash on the command-line you can use use the command gnash-raymii ~/flash-file.swf.
To use the commands you must prefix them with the snap name. (gnash-raymii.dump-gnash).
GNU Gnash is the GNU Flash movie player — Flash is an animation
file format pioneered by Macromedia which continues to be
supported by their successor company, Adobe. Flash has been
extended to include audio and video content, and programs written
in ActionScript, an ECMAScript-compatible language. Gnash is
based on GameSWF, and supports most SWF v7 features and some
SWF v8 and v9. SWF v10 is not supported by GNU Gnash.
Swap out openSUSE_Leap_15.2 for openSUSE_Leap_15.1, openSUSE_Leap_15.0, or openSUSE_Tumbleweed if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands: