linux自动备份shell(使用全备份,增量备份策略)

在cron里设置,每周一凌晨2点执行(每周一全备份,其余时间增量备份)

#vi backup.sh

# !/bin/bash

#  define
dayofweek = `date  " +%u " `
today
= `date  " +%Y%m%d " `
source
=/ data /
backup
=/ backup /

#  action
cd  $backup

if  [  $dayofweek   -eq   1  ]; then
  
if  [  !   -f   " full$today.tar.gz "  ]; then
    rm 
- rf snapshot
    tar 
- g snapshot  - zcf  " full$today.tar.gz "   $source --exclude $sourceserver.log
  fi
else
  
if  [  !   -f   " inc$today.tar.gz "  ]; then
    tar 
- g snapshot  - zcf  " inc$today.tar.gz "   $source --exclude $sourceserver.log
  fi
fi

 

 

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