FG

Why unload variables in Windows batch files

Fresh3 days ago
Mar 15, 202624889 views
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Problem

Is it considered necessary or good practice to unload variables used in Windows batch files? For example in the following code, is the at the end necessary? I have seen this in a number of places online, surely the variables are unloaded automatically when the batch file ends?

Error Output

@echo off
set myFolder="C:\Temp\Batchfiles"
echo %myFolder%

set myFolder=

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Fix for: Why unload variables in Windows batch files

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will set a global environment variable. It will persist after the execution of your script. Let's have a look at an example. First, I clear the variable to make sure it doesn't exist. A quick test: Let's create that batch file and execute it: Let's …

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