How to make a file (e.g. a .sh script) executable, so it can be run from a terminal

Question 1

I have a script.sh file and type of this file is shellscript file. I want to make this file as application/x-executable file. How can I make it?

Question 2

You can mark the file as executable:

chmod +x filename.sh

You can then execute it like this:

./filename.sh

If you want to use a different command to start it, you can add an alias:

gedit ~/.bashrc

Add this at the end of the file:

alias <new name>='/home/<full path to script>/filename.sh'

Open a new terminal session or type source ~/.bashrc in your terminal to apply.
Then simply use the new name to start the script.

Answer