Performing Perl Substitution Without Modifying the Original String

Introduction

When working with strings in Perl, a frequent task is to perform substitutions using regular expressions. However, there are times when you want to keep the original string intact while storing the modified version in a new variable. In this blog post, we’ll explore various ways to achieve this in Perl, ensuring that your original string remains unchanged while you work with its modified copy.

The Traditional Method: Copy and Modify

The most straightforward approach to perform a substitution while preserving the original string is to first copy the string to a new variable and then apply the substitution to the copy.

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