#!/bin/bash
ahora=`date ‘+%Y%m’%d`
backup=”backup/cpbackup” ## carpeta de backup
retencion=”backup/retencion” ## carpeta de backup
mv -f “/$backup”/daily /”$retencion”/$ahora
mkdir “/$backup”/daily
cp -al /”$retencion”/$ahora/* /”$backup”/daily/
cd /”$retencion”/
for backup in *;
do limite=`date ‘+%Y%m’%d –date ‘7 dias’`;
if [ “$backup” != “daily” ] && [ “$backup” -lt “$limite” ];then rm -rf “$backup”;
fi;
done