Shell script to backup MySql database

[patrick]

#!/bin/bash
# Shell script to backup MySql database
# To backup Nysql databases file to /backup dir and later pick up by your
# script. You can skip few databases from backup too.
# For more info please see (Installation info):
# http://www.cyberciti.biz/nixcraft/vi...up-script.html
# Last updated: Aug - 2005
# --------------------------------------------------------------------
# This is a free shell script under GNU GPL version 2.0 or above
# Copyright (C) 2004, 2005 nixCraft project
# Feedback/comment/suggestions : http://cyberciti.biz/fb/
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# -------------------------------------------------------------------------

MyUSER="SET-MYSQL-USER-NAME" # USERNAME
MyPASS="SET-PASSWORD" # PASSWORD
MyHOST="localhost" # Hostname

# Linux bin paths, change this if it can't be autodetected via which command
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
CHOWN="$(which chown)"
CHMOD="$(which chmod)"
GZIP="$(which gzip)"

# Backup Dest directory, change this if you have someother location
DEST="/backup"

# Main directory where backup will be stored
MBD="$DEST/mysql"

# Get hostname
HOST="$(hostname)"

# Get data in dd-mm-yyyy format
NOW="$(date +"%d-%m-%Y")"

# File to store current backup file
FILE=""
# Store list of databases
DBS=""

# DO NOT BACKUP these databases
IGGY="test"

[ ! -d $MBD ] && mkdir -p $MBD || :

# Only root can access it!
$CHOWN 0.0 -R $DEST
$CHMOD 0600 $DEST

# Get all database list first
DBS="$($MYSQL -u $MyUSER -h $MyHOST -p$MyPASS -Bse 'show databases')"

for db in $DBS
do
skipdb=-1
if [ "$IGGY" != "" ];
then
for i in $IGGY
do
[ "$db" == "$i" ] && skipdb=1 || :
done
fi

if [ "$skipdb" == "-1" ] ; then
FILE="$MBD/$db.$HOST.$NOW.gz"
# do all inone job in pipe,
# connect to mysql using mysqldump for select mysql database
# and pipe it out to gz file in backup dir
$MYSQLDUMP -u $MyUSER -h $MyHOST -p$MyPASS $db | $GZIP -9 > $FILE
fi
done

[thanh_hien73]

mình đang sử dụng centos 4.5 và webmin 1.3, mình dự định tạo crontab để nó tự động xóa data của field mà time quá 7 ngày? mình phải làm ntn?

vd: gs kềt nối đến localhost với userhp, pass là:1234, csdl là test với table tên thoisu(ms(int),ten(varchar),loai(varchar),ngayphat (datetime)),phải làm thế nào để delete ms from thoisu where ngayhtai-ngayphat>=7

Mong dc giúp đỡ?

[LM]

Viết câu lệnh trong file script php chẳng hạn rồi dùng cron gọi cái lệnh php de exec nó.

Ví dụ như cái lệnh php là /bin/php thì:

command trong cron là /bin/php -q /path/script.php