Q100679: How to get environment variable values

Peter Coleman

Updated : November 07, 2023 15:29

Created : September 27, 2023 11:15

SUMMARY

The following article details how to get environment variables values on each platform or inside Foundry applications. Environment variables are dynamic-named values which can be used to alter the behaviour of a process that uses them.

MORE INFORMATION

Below are instructions for how to get an environment variable value which has been set on each platform or from within a Foundry application:

Windows

1) Select Start and search for Command Prompt.
2) In the Command Prompt window, enter echo %VARIABLE%, changing VARIABLE with the name of your environment variable:

Linux and macOS

1) Launch Terminal or a shell.

2) Run the command echo $VARIABLE, changing VARIABLE with the name of your environment variable:

Inside Applications

Nuke

• Press X in the Node Graph, check that TCL is enabled, and enter:

getenv <VARIABLE>

VARIABLE should be replaced by the environment variable you're interested in. For example, by default NUKE_TEMP_DIR on Windows returns: C:/Users/<userName>/AppData/Local/Temp/nuke

All Applications

• Open the Script Editor/Python Console/Python tab and enter:

import os
print(os.environ["VARIABLE"])

VARIABLE should be replaced by the environment variable you're interested in.

SUMMARY

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