npm

posh

A POSIX-compliant shell implementation for policy-based scripting

brewmacoslinux
Try with needOr install directly
Source

About

Policy-compliant ordinary shell

Commands

posh

Examples

Execute a shell script with POSIX compliance$ posh script.sh
Start an interactive POSIX shell session$ posh
Run a command with POSIX shell restrictions$ posh -c 'echo Hello World'