git-diff-files:tldr:9a407
The command "git diff-files
In this command, "${filename}" should be replaced with the actual name of the file you want to compare.
When you run this command, Git compares the content of the file in your working directory with the version of the file that is currently staged (added to the index). It then shows the differences between these two versions, highlighting the added, modified, and deleted lines.
This command is useful when you want to see the changes you have made to a file that is ready to be committed. It helps you verify the modifications before actually committing them to the repository.