If I am in a Linux terminal and I start setting variables such as export `AGE=45`.

Then I have a script to read user data from terminal variables and process it, is this possible to do?

```
IE:

user@linux$ export AGE=45

user@linux$ ./age.sh

#script asks for input

read -p "what is your age?" scriptAGE

#user inputs variable set in terminal

$AGE

```

#echo output

```
echo "your age is: " $scriptAGE" 

```

#should say your age is: 45