bash

#!/bin/bash
#crontab  -e  保留3天备份

date=3
path='/data/atlassian/application-data/confluence/backups/'
find $path    -mtime +$date -name    "backup-*"  -exec rm  -rf {} \;

cat t.txt  | sed '/^$/d'  | awk  '{print $1}'  去掉取出第一行去掉中间的空行