# How can I use custom environment variables defined in Linux within GenieACS JavaScript code?

**URL:** <https://forum.genieacs.com/t/how-can-i-use-custom-environment-variables-defined-in-linux-within-genieacs-javascript-code/6819>\
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**Created:** [May 4, 2025, 4:19pm UTC](https://forum.genieacs.com/t/how-can-i-use-custom-environment-variables-defined-in-linux-within-genieacs-javascript-code/6819 "2025-05-04T16:19:31Z")\
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**Author:** ![kmlsmv1](https://avatars.discourse-cdn.com/v4/letter/k/f1d935/32.png) [@kmlsmv1](https://forum.genieacs.com/u/kmlsmv1)\
**Post date:** [May 4, 2025, 4:19pm UTC](https://forum.genieacs.com/t/how-can-i-use-custom-environment-variables-defined-in-linux-within-genieacs-javascript-code/6819/1 "2025-05-04T16:19:31Z")

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How can I use custom environment variables defined in Linux within GenieACS JavaScript code?

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**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\
**Post date:** [May 5, 2025, 4:14pm UTC](https://forum.genieacs.com/t/how-can-i-use-custom-environment-variables-defined-in-linux-within-genieacs-javascript-code/6819/2 "2025-05-05T16:14:38Z")

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Do you mean in a provision script, or in an extension script? Provision script, not possible, directly. Extension script, import like a regular env var.

A work around if you need some configurable piece of data in a provision script is have the provision script call the extension script to get that information.