1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun# Exit on the first error 4*4882a593Smuzhiyunset -e 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun# Does ln supports the --relative/-r option? 7*4882a593Smuzhiyunln --relative --help >/dev/null 2>&1 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun# Does realpath exist? 10*4882a593Smuzhiyunrealpath --help >/dev/null 2>&1 11*4882a593Smuzhiyun 12*4882a593Smuzhiyunecho OK 13