Final answer:
When the execution file is executed in Copado, it looks for variables in the matched metadata patterns to process the deployment of Salesforce applications.
Step-by-step explanation:
In short, when the execution file is executed, Copado will select variables in the file or files that match the pattern defined in the metadata. This process is part of Copado's DevOps suite, which helps in orchestrating and automating the deployment of Salesforce applications. The execution file typically contains instructions on how to proceed with the deployment, which variables to use, and any specific configurations or metadata patterns that should be matched.