Run expect script from other shell

Question

My target is to create the /var/tmp/add_user.bash script from /var/tmp/create_script_add_user.bash script and run the expect script (add_user.bash) from create_script_add_user.bash script.

The problem is that when I run the script add_user.bash from create_script_add_user.bash, then expect gets stuck on the question:

      Proceed? n) 

It looks like expect can't see the question from standard output. But when I run the script /var/tmp/add_user.bash, then it works fine.

Why can't expect run from the other script? And how to solve this issue?

Contents of /var/tmp/create_script_add_user.bash

   #!/bin/bash


   echo '#!/bin/bash


   add_user=`cat << EOF
   set timeout -1
   spawn /var/tmp/add_user.bash user_name=OBAMA
   expect n)   { send "yes\r" }
   expect eof
   EOF`

    /usr/local/bin/expect -c  "$add_user"

    '> /var/tmp/add_user.bash

    chmod +x /var/tmp/add_user.bash

    #need sleep for 5 seconds
    ( sleep 5 ; /var/tmp/add_user.bash ) &

Contents of /var/tmp/add_user.bash

 #!/bin/bash

 add_user=`cat << EOF
 set timeout -1
 spawn /var/tmp/add_user.bash user_name=OBAMA
 expect n)   { send "yes\r" }
 expect eof
 EOF`

 /usr/local/bin/expect -c  "$add_user"

Answer 1

I find the solution for the problem

need to run the /var/tmp/add_user.bash without the process " & "

example

       #need sleep for 5 seconds

       sleep 5

       source /var/tmp/add_user.bash

now expect get the "n)" string and send "y" as answer