#!/bin/bash log_location="/home/xele/xele_md/bin/sse_md_l2_local1.log" expire_time=$(grep expire_time "$log_location" | head -1 | grep -oP 'expire_time=\K\d+') one_day_later=$(date -d "+3 day" +%Y%m%d) if [ "$expire_time" -gt "$one_day_later" ]; then echo '1' else echo '0' fi