Please show step by step how to solve this question (answer is already posted multiple time on Chegg but I am not able to follow it as I need someone to show me how to solve the exact example):

Write a shell script that will rename all the files in a directory. The first argument is a base name, second argument is a file extension. If the script is run as: bash_renumber.sh 25thAnniversary jpeg then the resulting files should have names like: 25thAnniversary001.jpeg, 25thAnniversary002.jpeg, 25thAnniversary003.jpeg, etc.