計劃CronJob /備份和刪除

Question

我想創建一個cronjob與以下細節;導出爲每週運行並轉儲超過3周的文件以從路徑中刪除。請你幫助創建一個示例腳本。

Answer 1

腳本（未經測試）

#!/bin/bash 

# Set path to backup directory 
BK_PATH = /path/to/backups/ 

# If 3 is there remove it 
if [ -f "${BK_PATH}3.tgz" ] 
then 
    rm -rf ${BK_PATH}3.tgz 
fi 

# If 2 is there, it becomes 3 
if [ -f "${BK_PATH}2.tgz" ] 
then 
    mv ${BK_PATH}2.tgz ${BK_PATH}3.tgz 
fi 

# If 1 is there, it becomes 2 
if [ -f "${BK_PATH}1.tgz ] 
then 
    mv ${BK_PATH}1.tgz ${BK_PATH}2.tgz 
fi 

# Create 1. 
tar czvf ${BK_PATH}1.tgz $1 

然後，在你的crontab：

0 0 * * 6 /path/to/the/script /path/the/thing/you/want/backedup