How to create a clickable command sequence startup file for ubuntu?

Question

bash

I need to run a program and feed it a certain file that needs to be cleared first. Is it possible to somehow automate this in order to execute a file in the console or with the mouse that would run a sequence of commands for the console? If possible, how and what should be written there? Make an example that would just open file.md. Better yet, two commands, open and close immediately, so that it is clear how to write a chain. Although it is possible simply without commands, the main thing is to make it clear.

Answer 1

$ touch file.sh
$ chmod +x file.sh

cat file.sh

#!/bin/bash

# очищаем заданный файл
echo -n > file.md

# далее следуют необходимые команды
# ...

ps
you don't need to specifically open and close files in the bash)