Hello,
When using zsh you need to add ' ' quotes.
So --mask='\?d\?d\?d\?d\?d\?d[-]\?d\' should work I think. You can try with your first command if this
doesn’t work but you must have quotes.
In order to switch fast (if your default shell is zsh) you just type bash in your terminal and it should switch you into bash for the current open window / tab.
Hope this helps.
Cheers…