Which command is used to move or rename a file in Git?

The command used to move or rename a file in Git is "git mv." This command not only facilitates the renaming of files but also stages the change for the next commit. When you use "git mv," Git tracks the movement of the file, ensuring that the history of changes is preserved.

This command serves two primary functions: it moves the file from one location to another within the repository, and it updates the index in preparation for a commit, therefore maintaining the efficiency of version control practices. This integrated feature of moving/renaming and staging in one command enhances workflow by minimizing the number of steps required.

While the other options may seem plausible, they do not serve the function of moving or renaming files within Git. "git rename" is not a recognized command in Git, "git change" does not exist in this context, and "git update" is also not a command relevant to file manipulation in the Git version control system.