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31 lines
800 B
Markdown
31 lines
800 B
Markdown
# Run Commands With Specific Rails Version
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You can have multiple versions of a gem like `rails` installed with `gem`.
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However, when you go to run a rails command, your system will default to using
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the latest version that you have installed.
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So doing a version check will show that version to currently be `7.1.3` and
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running something like `rails new` will set up a new Rails 7.1.3 app.
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```bash
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$ rails --version
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Rails 7.1.3
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$ rails new my_app
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```
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If you want to use a Rails version besides the latest you have installed for
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whatever command, you can use a `gem` convention which is to put `_<VERSION>_`
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right after the gem name.
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Let's try this for Rails 6.1.3:
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```bash
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$ rails _6.1.3_ --version
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Rails 6.1.3
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$ rails _6.1.3_ new my_app
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```
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[source](https://stackoverflow.com/a/452458/535590)
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