See Appendix A, Exercise Answers for answers.
Be careful to test this program in a mostly empty directory so that you don't accidentally delete useful stuff! Remember that the command-line arguments are available in the
@ARGV array when the program starts.
Write a program that works like rename, renaming the first command-line argument to the second command-line argument. (You don't need to handle any options of rename, or more than two arguments.) You may wish to consider how to handle the rename when the destination is a directory.