in linux coding

Transform a script contact_one.sh (sec. 5.2) so that instead of using a file with names it will use a HERE document (it may include the same information as the file myContactlist). Another change is that instead of using a positional parameter you read a pattern from a user (dont forget about a prompt). Include a command grep into a while or until loop providing different input strings. If a name is not in HERE document, display a message saying that.