This feature is only available in the v4 beta. To upgrade to v4, see the upgrade to v4 docs.
Run the command like this: 
npx trigger.dev@v4-beta switch [profile]
It will switch to the specified profile. If no profile is specified, it will list all available profiles and run interactively.

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Arguments

npx trigger.dev@v4-beta switch [profile]
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Profile
[profile]
The profile to switch to. If not specified, it will list all available profiles and run interactively.