How to ignore config files in SVN?

What is the proper syntax to ignore a specific file such as a configuration file which may be different depending if it is ru开发者_运维知识库nning on Development, QA or Production?

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Create and check in a template web.config.template and ignore web.config the 'deployed' version.

To automate the web.config.template customization create a shell script.

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you can add property svn:ignore in your repository and ignore *.config files or exactly web.config