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Use -e with the echo in the above code as in echo -e "$output"

Or another approach

#!/bin/bash

read -p "Please enter a name : " name
awk -F":" '
BEGIN{ fmt="%20s%20s\n" }
function...

This is not right. Did you try the code which I gave to see if it works for you without integrating it to your script?
I think what you are trying to do here is, get a input and display the details...

Well, it works for me. Did you omit the new line in the code? Are you using the exact code I have given? which is your OS?

root@maximus:/tmp# awk '
BEGIN{ fmt="%20s%20s\n" }
function prt()...

awk '
BEGIN{ fmt="%20s%20s\n" }
function prt()
{
printf(fmt, "First Name:", data[1])
printf(fmt, "Last Name:", data[2])
printf(fmt, "Phone Number:", data[3])
printf(fmt,...