Mark Alston malston

macOS is a Unix, and not built on Linux.

I think most of us realize that macOS isn't a Linux OS, but what that also means is that instead of shipping with the GNU flavor of command line tools, it ships with the FreeBSD flavor. As such, writing shell scripts which can work across both platforms can sometimes be challenging.

Homebrew

Homebrew can be used to install the GNU versions of tools onto your Mac, but they are all prefixed with "g" by default.

All commands have been installed with the prefix "g". If you need to use these commands with their normal names, you can add a "gnubin" directory to your PATH from your bashrc.

Create a custom stack and add to TBS

Create a docker file for image:

# Set a common base
FROM alpine as base

# Set required CNB information
ENV CNB_USER_ID=1000

	#/bin/bash
	set -e

	if [[ -n "$DEBUG" ]]
	then
	echo "!!! Debug output enabled"
	set -x
	fi

	set -u