Right now there are 22 options that form the fixes and enhancements to bash: oil$ shopt -p oil:upgrade shopt -s command_sub_errexit shopt -u dashgl

Right now there are 22 options that form the fixes and enhancements to bash: oil$ shopt -p oil:upgrade shopt -s command_sub_errexit shopt -u dashglob shopt -s errexit shopt -u expand_aliases shopt -s inherit_errexit ... Some affect parsing and some affect execution. OSH is a bash-compatible shell, from scratch! :) Let me know what happens