faq.md
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Every title has a default version. You can change the version in use by using the version override environment variable for the title.
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On Linux: export SAMTOOLS_X=1.9
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+
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On Mac: export SAMTOOLS_X=1.9
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Details here: [Overriding Software Versions](https://biogrids.org/wiki/versions)
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## R version confirmation
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----
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From the command line, check your path:
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```