It looks like two words in a tag are not "writtentogether" instead "written-thisway", right?
Acording to other name tags, there shouldn't be an Amiga-Shell tag at all. A shell is something that each and every OS provides in some way. For a good reason there is no Windows-Shell, Atari-ST-Shell, Atari-800-Shell, MS-DOS-Shell or Unix-Shell tag, but a tag for each of the systems/OSes plus the Shell tag.
Tags are meant to help finding stuff, that means they must be rather inclusive, not not maximum differentiating (excluding).
Looking at the questions that are, so far, tagged with Amiga-Shell, all of them are tagged with Amiga as well.
So no, better remove that tag at all and replace it by 'Shell' in these six questions.