Moving wordpress to an other domain can be a hassle. Here is a script on how to do it in without the pain.

move-wordpress-to-different-domain.sh

#!/bin/bash -xeu
# This script moves your wordrpress page under a different domain
# Zoltan C. Toth
export HISTCONTROL=ignorespace

ORIGIN_DOMAIN=teszt2.gyulahus.hu
TARGET_DOMAIN=teszt.gyulahus.hu
ORIGIN_DIR=/home/gyulahus/public_html/$ORIGIN_DOMAIN
TARGET_DIR=/home/gyulahus/public_html/$TARGET_DOMAIN
TARGET_DB=teszt2_gyh

# get MySQL Credentials from the original wordpress site
$(
echo -e '<?php\n' $(cat $ORIGIN_DIR/wp-config.php | grep DB_) '
         echo "export MYSQL_USER=".DB_USER."
               export MYSQL_PASSWORD=".DB_PASSWORD."
               export MYSQL_DB=".DB_NAME
         ?>' | php
)

mkdir -pf db_dumps
DUMP=db_dumps/gyulahus-$ORIGIN_DOMAIN.dump
mysqldump -u$MYSQL_USER -p$MYSQL_PASSWORD $MYSQL_DB > $DUMP


# Set up site in a new directory
rm -rf $TARGET_DIR/*
cp -ra $ORIGIN_DIR/. $TARGET_DIR/

sed -i "s|define('DB_NAME', '$MYSQL_DB');|define('DB_NAME', '$TARGET_DB');|" $TARGET_DIR/wp-config.php

mysql -u$MYSQL_USER -p$MYSQL_PASSWORD -Nse 'show tables' $TARGET_DB | \
while read table; do mysql -u$MYSQL_USER -p$MYSQL_PASSWORD -e "drop table $table" $TARGET_DB; done

mysql -u$MYSQL_USER -p$MYSQL_PASSWORD $TARGET_DB < $DUMP


# Migrate site to an other domain
# `wp` command: http://wp-cli.org/

## Migrate DB
wp --path=$TARGET_DIR search-replace $ORIGIN_DOMAIN $TARGET_DOMAIN
wp --path=$TARGET_DIR cache flush

## Migrate file
find $TARGET_DIR -iname '*.cache' | xargs rm -f
fgrep -lr $ORIGIN_DOMAIN $TARGET_DIR | xargs sed -i "s|$ORIGIN_DOMAIN|$TARGET_DOMAIN|g"