I am a total noob in shell scripting. I am creating a .sh file with multiple commands, but my problem is that the last command is an executable file that after executing stays open and the processes keep running in the terminal until I close the terminal or press Ctrl+C or . I want to kill these processes or quit the terminal which will also kill the process automatically while running the .sh file. This is the script so far:

#!/usr/bin/env bash

cd ./var/www/testGraduationProject1/public/Hume2Compiler/bin/

export PATH=$PATH:`pwd`

humec -lotsaspace tails.hume;

./tails > hello.txt

I have tried these two commands but they just stop the loading of process in terminal, but without closing the terminal or the process itself.

killall tails

stty -a | grep inter