Change Ruby version for single command with rbenv

October 13, 2020

You can switch Ruby version temporarily with rbenv local

But it'd need to be switched back after you're done. Specially for a single command it's kind of pain. In those cases, you can use RBENV_VERSION env variable.

RBENV_VERSION=2.6.3 ruby -v

This might be useful in a shell script or so.

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Change Ruby version for single command with rbenv

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Change Ruby version for single command with rbenv

More on ruby

Allow pasting multiline ruby blocks in Pry when using leading dot notation

Heredoc without interpolation

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Have a project in mind?