How to Pass Array Arguments in Bash Scripts while Handling Spaces

Learn how to effectively pass an array of arguments between bash scripts, including those with spaces, ensuring clear and precise variable handling.
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How to Pass Array Arguments in Bash Scripts while Handling Spaces

Bash scripting can be a powerful tool for automating tasks in Unix-like systems, but issues can arise when handling arrays that contain arguments with spaces. If you've ever attempted to pass an array of arguments from one bash script to another, you might have stumbled upon unexpected behavior, especially when those arguments include strings that contain spaces. This post will guide you through the problem and provide a straightforward solution.

Understanding the Problem

Example Scenario

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You end up with this output:

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In contrast, if you call it with:

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The output changes drastically to:

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Neither of these results is what you intend. The goal is to achieve output like this:

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The Solution

To successfully pass an array of arguments that includes spaces between words, you should use a different syntax that ensures each array element is treated individually. The solution lies in using the @ symbol instead of * when referencing the array.

Step-by-Step Implementation

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Final Example Code

Here’s what the final version of the scripts would look like:

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Expected Output

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Conclusion

Handling arrays with arguments containing spaces in bash scripts doesn't have to be complicated. With the correct syntax of using "${ARGS_TO_PASS[@ ]}", you can easily pass each argument individually, achieving clear and precise output. Now you can confidently manage your script arguments, no matter their complexity!