The following settings enable list view, enable executing sh files by clicking on them and enable viewing MIME types on the list view.
Beware that execution of sh files via double click is risky.
At Edit → Preferences:
- at →Views
- Change Default view to List view
- at → Behavior
- Change “Ask each time” to Executable Text files settings
- at → List columns
- add MIME type and permissions. Move MIME type to top
- add permissions if you like