Local MySQL backup with "hidden" credentials. Backups over 30 days old are removed.

dbbackup.sh

#!/bin/bash

#MYSQL DATABASE BACKUP
#Author: Gary Taylor <gary.taylor@du.edu>
#Credentials are stored in a separate file that you can keep them out of your repository while including the dbbackup script itself.

#Credentials Location
source $PWD/.backup.vars

#BACKUP FILE NAMING
BACKUP_FILE=$DATABASE-$HOST-$(date +"%Y-%m-%d-%H-%M-%S")

BACKUP_FILE_PATH=$BACKUP_DIR$BACKUP_FILE'.gz'

#CREATE THE BACKUP
mysqldump --opt --single-transaction -u $USERNAME -p$PASSWORD $DATABASE | gzip > $BACKUP_FILE_PATH
echo "$BACKUP_FILE created"
FILE_SIZE=$(ls -lah $BACKUP_FILE_PATH | awk '{ print $5}')

#REMOVE BACKUPS OLDER THAN 30 DAYS
find $BACKUP_DIR -mtime +30 -exec rm {} \;
echo "Removed backups older than 30 days"

#EMAIL BACKUP NOTIFICATION
echo "$BACKUP_FILE operation completed (Size: $FILE_SIZE)" | mutt -s "$HOST Database Backup Notification" $EMAIL_NOTIFY

echo "Backup operation complete"

.backup.vars

DATABASE=''
USERNAME=''
PASSWORD=''
HOST=$(hostname)
BACKUP_DIR='[full_path]'
EMAIL_NOTIFY=''