crond 사용법

mkdir /etc/cron.exe

vi /etc/crontab

cd /etc/cron.exe

touch backup.cron

vi backup.cron

#!/bin/sh

DIRECTORY="/home/work"

BACKUPDIR="/backup"

INCREMENTAL=$BACKUPDIR/backuplist

week=`date +%u`

DM=`date +%d-%m-%y`

if [ ! -d $BACKUPDIR ]

then

    mkdir $BACKUPDIR

fi

if [ ! -f $BACKUPDIR/Fullbackup* ]

then

    tar cpfz $BACKUPDIR/Fullbackup-$DM.tar.gz $DIRECTORY

else

    if [ $week = 7 ] 

    then

rm -f $BACKUPDIR/*

    tar cpfz $BACKUPDIR/Fullbackup-$DM.tar.gz $DIRECTORY

    else

tar cpfz $BACKUPDIR/Incremental-$DM.tar.gz

-g $INCREMENTAL $DIRECTORY

    fi

fi

bash backup.cron

ls /backup

chmod 755 backup.cron

vi /etc/crontab

50 11 * * * root run-parts /etc/cron.exe

setup -> system service -> crond chk

service  crond restart

service xinetd restart

service  crond status

date 14072009

ls -l /backup

->  Fullbackup-xxxxx.tar.gz

date 123111492007

service  crond restart

service xinetd restart

ls -l /backup

->  Fullbackup-xxxxx.tar.gz

->  Incremental-xxxxx.tar.gz 

->  backuplist