shell全备份脚本（借鉴别人的，在其基础上修复完善了bug）

#!/bin/bash

# Shell script to backup MySql database 

# Last updated: Aug - 2015

 

MyUSER="root"     # USERNAME

MyPASS="root"       # PASSWORD 

MyHOST="localhost"          # Hostname

 

# Linux bin paths, change this if it can not 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  --events --ignore-table=mysql.event --skip-events --default-character-set=utf8 --skip-lock-tables $db | $GZIP -9 > $FILE

    fi

done