Shell Programming and Scripting

#!bin/bash
 
function userrecord() {
clear
read -p "please enter a number" a
output=$(grep -w "$a" record)
b=$(echo $a | tr -dc [:digit:])
echo $output
echo $b
if [[ "$b" = "$a" ]]; then
echo "number only"
else
echo "not numbers only"
fi
if [[ -z $output ]]; then
echo -e "the ID has already been taken\n"
        userrecord
fi
if [[ -n $output ]]; then
echo -e " the number $a does not exist"
echo -e "end of file1 record reached"
fi
}

userrecord

#!bin/bash

#!/bin/bash