IMAPbackup
                                
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                        bash: ./run.sh: /bin/bash^M: bad interpreter: No such file or directory
ran into the same issue and fixed it with vim/vi:
:set ff=unix
save & exit, the script will work. It is related to dos/unix file endings
Thanks for fixing it @dwehrmann feel free to make a PR 😃
I update the file to have LF endings