If the "Standard ML of New Jersey" is installed it will return the path of the last version found otherwise an empty string. The script works on the assumption that SML/NJ was installed using the official installer, and the root directory is the default /usr/local/smlnj http://www.smlnj.org/dist/working/110.75/NOTES/MACOSXINSTALL Created because…

gistfile1.sh

#!/bin/bash
#
# If the "Standard ML of New Jersey" is installed it will return the path of 
# the last version found otherwise an empty string.
#
# The script works on the assumption that SML/NJ was installed using the 
# official installer, and the root directory is the default /usr/local/smlnj
# http://www.smlnj.org/dist/working/110.75/NOTES/MACOSXINSTALL
#
# find /usr/local/smlnj-*/bin -type d -maxdepth 0 | sort -nr | head -n1
#
# Copyright (c) 2013 Marcos Sader
# https://gist.github.com/xmarcos
# Distributed under the The MIT License
#

LAST_VERSION="";
FIND_PATH=`find /usr/local/smlnj-*/bin -type d -maxdepth 0 | sort -nr | head -n1`;

if [ -d "$FIND_PATH" ]; then
  LAST_VERSION="$FIND_PATH"
fi

echo "$LAST_VERSION"