Okay here is a fix when it DOES ask for a yes/no or other. Well, at least when it asks one question and you want to answer it "yes". Do not recommend this for general fix.
Cell code is:
%%bash cd ~/ ./GetComponents --parallel https://bitbucket.org/einsteintoolkit/manifest/raw/ET_2017_06/einsteintoolki... << END_INPUT yes END_INPUT
bill e.g.
bash fixx for yes/no