$ snap --help
The snap command lets you install, configure, refresh and remove snaps.
Snaps are packages that work across many different Linux distributions,
enabling secure delivery and operation of the latest apps and utilities.
Usage: snap <command> [<options>...]
Commands can be classified as follows:
Basics: find, info, install, list, remove
...more: refresh, revert, switch, disable, enable
History: changes, tasks, abort, watch
Daemons: services, start, stop, restart, logs
Commands: alias, aliases, unalias, prefer
Configuration: get, set, wait
Account: login, logout, whoami
Permissions: interfaces, interface, connect, disconnect
Other: version, warnings, okay
Development: run, pack, try, ack, known, download
For more information about a command, run 'snap help <command>'.
For a short summary of all commands, run 'snap help --all'.