shell script, crontab

=================================================

$ nano backup

#!/bin/bash

if ! [ -d bak ]; then

        mkdir bak

fi

cp *.log bak

                    

$ chmod +x backup

chmod +x <스크립트파일> 명령으로 권한변경후 

"./<스크립트파일>" 명령으로 실행

crontab =================================================

systemcrl status crond (상태확인)

workspace $ vi /etc/crontab

workspace $ cd /etc/cron.monthly/

/etc/cron.monthly $ pwd

/etc/cron.monthly

/etc/cron.monthly $ vi mybackup.sh

#!/bin/sh

set $(date)

#$2 : 월 , $3 : 일

fname ="backup-$2$3.tar.xz"

tar cvfJ /backup/$fname /home

mkdir /backup

chmod ugo+x myBackup.sh

systemctl restart crond

sh =====================================

#!bin/sh

set $(date)

echo $(date)

echo $0

echo $1

echo $2

echo $3

echo $4

exit 0