1. Write a Bash shell script named phone.bsh that prompts the user the to enter first or last or any portion of person's name, so that can be found the appropriate entry in the phone directory file called phones which may be found in the ~unx122/examples directory.
If the user tries to enter name as the argument on the command line, he/she will get a warning message "You need to provide name when prompted by this script!".
If the person's entry does NOT exist in the file phones then it will be displayed the following message "Name NOT found in the phone directory file!" (where Name is the user's input).