Created
December 19, 2014 02:46
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MySQL Backup
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#!/bin/sh | |
# List of databases to be backed up separated by space | |
dblist="database1 database2 database3" | |
# Directory for backups | |
backupdir=/DIR/mysql_dumps | |
# Number of versions to keep | |
numversions=4 | |
# Full path for MySQL hotcopy command | |
# Please put credentials into /root/.my.cnf | |
#hotcopycmd=/usr/bin/mysqlhotcopy | |
hotcopycmd="/usr/bin/mysqldump --lock-tables --databases" | |
# Create directory if needed | |
mkdir -p "$backupdir" | |
if [ ! -d "$backupdir" ]; then | |
echo "Invalid directory: $backupdir" | |
exit 1 | |
fi | |
# Hotcopy begins here | |
echo "Dumping MySQL Databases..." | |
RC=0 | |
for database in $dblist; do | |
echo | |
echo "Dumping $database ..." | |
mv "$backupdir/$database.gz" "$backupdir/$database.0.gz" 2> /dev/null | |
$hotcopycmd $database | gzip > "$backupdir/$database.gz" | |
RC=$? | |
if [ $RC -gt 0 ]; then | |
continue; | |
fi | |
# Rollover the backup directories | |
rm -fr "$backupdir/$database.$numversions.gz" 2> /dev/null | |
i=$numversions | |
while [ $i -gt 0 ]; do | |
mv "$backupdir/$database.`expr $i - 1`.gz" "$backupdir/$database.$i.gz" 2> /dev/null | |
i=`expr $i - 1` | |
done | |
done | |
if [ $RC -gt 0 ]; then | |
echo "MySQL Dump failed!" | |
exit $RC | |
else | |
# Hotcopy is complete. List the backup versions! | |
ls -l "$backupdir" | |
echo "MySQL Dump is complete!" | |
fi | |
exit 0 |
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