How to press exclamation mark key in Emacs?

Question

I begin to work with Emacs and decide to learn all its shortcuts. To execute a shell command there is a M-! shortcut. But I don't know how to press exclamation mark key. Usually I press Shift-1 but when in Emacs I do Alt-Shift-1 nothing happened. I tried Alt-1 but it is M-1. I know it is a noob question but can someone please help me?

Answer 1

The issue was fixed! The problem was with keyboard layout for language switching. In my KDE environment there was an Alt-Shift key for switching languages.

So if someone will encounter with this issue - please check your keyobard layout shortcuts: probably you have an Alt (meta) -Shift key for this. If so - change it to another.