print_arch

#!/bin/bash

if [[ "$OSTYPE" == "linux-gnu"* ]]; then
  echo "linux"
elif [[ "$OSTYPE" == "darwin"* ]]; then
  echo "darwin"
elif [[ "$OSTYPE" == "cygwin" ]]; then
  # POSIX compatibility layer and Linux environment emulation for Windows
  echo "windows"
elif [[ "$OSTYPE" == "msys" ]]; then
  # Lightweight shell and GNU utilities compiled for Windows (part of MinGW)
  echo "windows"
else
  exit 1        # Unknown.
fi