1#!/usr/bin/env bash 2type -atp java 3OUT=$? 4#echo $OUT 5if [ $OUT -eq 0 ]; then 6#found java now check 1.5<=version<=1.7 7#version >1.7 may be OK just not checked yet. 8 java -version 2>&1|grep version.*[1]\.[567] 9else 10 exit 1 11fi 12#OUT=$? 13#echo $OUT 14 15