i think i missed a command not sure can someone explain

3. At the command prompt, execute sudo ./tarsum. sh yourname,tar > yourname.tar.md5, replacing yourname with your own name, to collect the md5 hash values of the contents of the tar archive file. This process will create a new file (yourname.tar.md5) in Downloads directory that contains the md5sum hash value There is no visible output for this command. 4. At the command prompt, execute the cat command on the yourname.tar.md5 file to view the md5 values in the yournametar.md5 file