Skip to content

Instantly share code, notes, and snippets.

@sajjadintel
Forked from tleish/mysql_backup.sh
Created June 12, 2018 12:33
Show Gist options
  • Save sajjadintel/da81f2f88207bc7ec4b197dbde6ea54a to your computer and use it in GitHub Desktop.
Save sajjadintel/da81f2f88207bc7ec4b197dbde6ea54a to your computer and use it in GitHub Desktop.
Bash Script to backup all MySQL databases
#!/bin/bash
#==============================================================================
#TITLE: mysql_backup.sh
#DESCRIPTION: script for automating the daily mysql backups on development computer
#AUTHOR: tleish
#DATE: 2013-12-20
#VERSION: 0.4
#USAGE: ./mysql_backup.sh
#CRON:
# example cron for daily db backup @ 9:15 am
# min hr mday month wday command
# 15 9 * * * /Users/[your user name]/scripts/mysql_backup.sh
#RESTORE FROM BACKUP
#$ gunzip < [backupfile.sql.gz] | mysql -u [uname] -p[pass] [dbname]
#==============================================================================
# CUSTOM SETTINGS
#==============================================================================
# directory to put the backup files
BACKUP_DIR=/Users/[your user name]/backup
# MYSQL Parameters
MYSQL_UNAME=root
MYSQL_PWORD=
# Don't backup databases with these names
# Example: starts with mysql (^mysql) or ends with _schema (_schema$)
IGNORE_DB="(^mysql|_schema$)"
# include mysql and mysqldump binaries for cron bash user
PATH=$PATH:/usr/local/mysql/bin
# Number of days to keep backups
KEEP_BACKUPS_FOR=30 #days
#==============================================================================
# METHODS
#==============================================================================
# YYYY-MM-DD
TIMESTAMP=$(date +%F)
function delete_old_backups()
{
echo "Deleting $BACKUP_DIR/*.sql.gz older than $KEEP_BACKUPS_FOR days"
find $BACKUP_DIR -type f -name "*.sql.gz" -mtime +$KEEP_BACKUPS_FOR -exec rm {} \;
}
function mysql_login() {
local mysql_login="-u $MYSQL_UNAME"
if [ -n "$MYSQL_PWORD" ]; then
local mysql_login+=" -p$MYSQL_PWORD"
fi
echo $mysql_login
}
function database_list() {
local show_databases_sql="SHOW DATABASES WHERE \`Database\` NOT REGEXP '$IGNORE_DB'"
echo $(mysql $(mysql_login) -e "$show_databases_sql"|awk -F " " '{if (NR!=1) print $1}')
}
function echo_status(){
printf '\r';
printf ' %0.s' {0..100}
printf '\r';
printf "$1"'\r'
}
function backup_database(){
backup_file="$BACKUP_DIR/$TIMESTAMP.$database.sql.gz"
output+="$database => $backup_file\n"
echo_status "...backing up $count of $total databases: $database"
$(mysqldump $(mysql_login) $database | gzip -9 > $backup_file)
}
function backup_databases(){
local databases=$(database_list)
local total=$(echo $databases | wc -w | xargs)
local output=""
local count=1
for database in $databases; do
backup_database
local count=$((count+1))
done
echo -ne $output | column -t
}
function hr(){
printf '=%.0s' {1..100}
printf "\n"
}
#==============================================================================
# RUN SCRIPT
#==============================================================================
delete_old_backups
hr
backup_databases
hr
printf "All backed up!\n\n"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment