How to run commands written in text file in Ubuntu 20.04

I just made a text file with the following commands to launch Xilinx Vivado software. How can I run this text file directly from the Terminal, so that I don't need to copy and paste all these commands in Terminal manually to run.

abc@alpha:source /Xilinx/Vivado/2021.1/settings64.sh
abc@alpha:source /Xilinx/Vitis/2021.1/settings64.sh
vivado

There are 2 ways around this in my books.
First you can run it with bash as follows:

bash /Xilinx/Vivado/2021.1/settings64.sh
bash /Xilinx/Vitis/2021.1/settings64.sh

Or you can add #!/bin/bash as the first line of each script - then you can make that script executable with the chmod command.

chmod 770 /Xilinx/Vivado/2021.1/settings64.sh
chmod 770 /Xilinx/Vitis/2021.1/settings64.sh

Then you can execute the script directly in the directory it's in with

./settings64.sh

Or you can make a 3rd script that runs them 1 by one.

Hope this makes sense.