v_curr_rq=`date +%Y%m%d`#昨天日期v_rq=`date -d "yesterday" +%Y%m%d`#本月月初v_lm=`date +%Y%m01`#上个月月末v_lm_rq=`date -d "${v_lm} last day" +%Y%m%d`#上上个月月末v_llm_rq=`date -d "${v_lm} last month last day" +%Y%m%d`