MySQLDump with progress bar

backup.sh

#!/bin/sh
#
# Usage: backup.sh -d <database name> [-d <database name>] [-l <login path>] [-f <backup file name>]

TEMP=`mktemp -d`

db_login="backup"
db_list=""
fn="backup"
dt=`date '+%Y%m%d'`

dump (){
    db_size=$(mysql  --login-path=$db_login --silent --skip-column-names \
        -e "SELECT ROUND(SUM(data_length) / 1024 / 1024, 0) \
            FROM information_schema.TABLES \
            WHERE table_schema='$db_name';")

    echo -e "\nDump database \"$db_name\" (${db_size}m)..."
    mysqldump --login-path=$db_login \
        --single-transaction --order-by-primary --routines --triggers \
        $db_name | pv --progress --size "$db_size"m > "${TEMP}/${db_name}_${dt}.sql"
}

while getopts ":d:l:f:" opt; do
  case $opt in
    l) db_login=$OPTARG ;;
    d) db_list="$db_list $OPTARG" ;;
    f) fn=$OPTARG ;;
  esac
done

if [ -z "$db_list" ]; then
    db_list="billing billing_safe radius"
fi

for db_name in $db_list; do
    dump
done

echo -e "\nCompress dumped files ..."
tar -cf - --directory=${TEMP} . | pv -s $(du -sb $TEMP | awk '{print $1}') | bzip2 > ${fn}_${dt}.tar.bz2
rm -rf $TEMP
echo