1、遍历给定工夫范畴内的日期

#! /bin/bashstart_date=2021.01.01end_date=2021.01.30start_sec=`date -d "$start_date" "+%s"`end_sec=`date -d "$end_date" "+%s"`for((i=start_sec;i<=end_sec;i+=86400)); do    day=$(date -d "@$i" "+%Y.%m.%d")    echo $daydone