文件备份脚本

#!/bin/bash
BACK_SAVE=/opt/back_save
BACK_DIR=/opt/
BACK_FILE=cowboycms
SCP_DIR=/opt/back_save
DATE=`date +%F`

#check error
check_error(){
    if [[ $1 != "0" ]]
    then
        echo `date +"%F %H:%M:%S" `"$2 error!" >> $BACK_SAVE/log/$BACK_FILE.log
        exit 1
    else
        echo `date +"%F %H:%M:%S" `"$2 is ok" >> $BACK_SAVE/log/$BACK_FILE.log
    fi
}

#back file
cd $BACK_DIR
tar zcvf $BACK_FILE.$DATE.tar.gz $BACK_FILE
check_error $? tar
scp $BACK_FILE.$DATE.tar.gz [email protected]:$BACK_SAVE/$BACK_FILE/
check_error $? scp
mv $BACK_FILE.$DATE.tar.gz $BACK_SAVE/data

#check old file to delete
let DEL_DATE=`date +%s -d "4 days ago"`/86400

cd $BACK_SAVE
check_error $? cd
let  A=$DEL_DATE%7

if [[ $A != "0" ]]
then
    rm -rf data/$BACK_FILE.`date +%F -d "15 days ago"`.tar.gz
fi