If you run snap and snapd <= 2.25 this is how you can set up aliases for snap applications in your snapcraft.yml:
apps: psql: command: usr/bin/wrapper-psql aliases: [psql] plugs: [network]
Build and install your snap package. Then you need to enable all such aliases manually as the user you plan to run your application as. Normally, it is an unprivileged user.
Before you can enable an alias, though, you need to make sure you’re logged in:
$ sudo snap login Email address: ***** Password of "*****": Login successful
Otherwise you won’t be able to create aliases as an unprivileged user (only as root via sudo.)
Enable your alias:
$ snap alias postgresql93.psql psql Added: - postgresql93.psql as psql
Verify it was created:
$ snap aliases Command Alias Notes postgresql93.psql psql manual
Use the alias:
$ whereis psql psql: /snap/bin/psql $ psql --version psql (PostgreSQL) 9.3.17
Remove your alias:
$ snap unalias psql Removed: - postgresql93.psql as psql
Aliases are unique:
$ snap alias postgresql94.psql psql error: cannot perform the following tasks: - Setup manual alias "psql" => "psql" for snap "postgresql94" (cannot enable alias "psql" for "postgresql94", already enabled for "postgresql93")
They can also be enabled automatically upon installation of a snap package when it is installed from a store.
Note, in snap version => 2.26 this behavior will change.