If you want to include a bash - script in the Elgato stream deck, then you need a bash script first.
Step 1: Create Bash script:
I create a file named “say-hallo.sh” with the following content:
#!/bin/bash
say "hallo"
Step 2: Set rights
The following command makes the file executable:
$ chmod 755 say-hallo.sh
Step 3: Include bash script in the deck
3.1) Now the stream deck app can be opened:
3.2) Then I drag the “System:open” action to a button
3.3) Now I can choose my bash script:
Step 4: Ready!
The new button is now usable.