core: fix for bash

modified:   .configitor/abstract.sh
modified:   .configitor/abstract/methods.sh
modified:   .configitor/command/install.sh
modified:   .configitor/command/test.sh
modified:   configitor.sh
modified:   configitor/install.sh
modified:   ctags/install.sh
modified:   fluxbox/install.sh
modified:   python/install.sh
modified:   vim/install.sh