[galaxy-dev] galaxy assumed linux shell

Hi, There are couple of Linux shells: bash, sh, zsh, csh. etc I would like to know if Galaxy is written to be supported on a specific one or it is written to support any linux shell? I'm asking this, because I want to add some features and I want to know what shell should I support? Or should write cross-shell code? In Dramaa runner, for example, it uses sh shell (inside drm_template inside drmaa.py), so any job that is run through this runner should support sh. Thanks, Hagai