我已经做了这件事，所以我可以测试插件更新。我编写了一个shell脚本（bash）来创建子目录并复制文件。然后，我利用WP-CLI 用于创建wp配置文件、导出/导入数据库以及在DB中搜索和替换站点名称的命令。这是我的脚本，细节改为；您的网站；

#!/bin/bash

shopt -s expand_aliases
alias wp=~/bin/wp-cli.phar

wp --version

sourceDir=~/public_html
destDir=~/public_html/test/

### Delete existing files in $destDir
read -p "Deleting all files in $destDir ...Continue? (y/n): " -n 1 -r
echo
if [[ $REPLY = [yY] ]]; then
    #rm -rf "$destDir/".[!.]* "$destDir/"*
    rm -rf "$destDir"
    mkdir "$destDir"
    if [[ -z $(ls -A "$destDir") ]]; then
        echo "Destination cleaned"
    else
        echo "Error: destination not empty"
        exit 2
    fi
else
    echo "Script aborted by user"
    exit 0
fi


### Clone source files
echo "Starting clone of source files"
cp "$sourceDir/"* "$destDir"
cp "$HOME/bin/.htaccess" "$destDir"
cp -R "$sourceDir/wp-"* "$destDir"
echo "Source files transfered"

### Create wp-config.php
cd "$destDir"
rm ./wp-config.php
wp config create \\
    --dbname=test_yoursite --dbuser=test_user --dbpass=\'yoursitePass\' --dbprefix=wp_ --extra-php <<EOL
@ini_set(\'display_errors\', \'Off\');
@ini_set(\'log_errors\', \'On\');
define(\'WP_DEBUG\', true);
define(\'WP_DEBUG_LOG\', true);
define(\'WP_DEBUG_DISPLAY\', false);
define(\'SAVEQUERIES\', false);
define(\'WP_MEMORY_LIMIT\', \'1024M\');
define(\'WP_POST_REVISIONS\', 10);
define(\'WP_MEMORY_LIMIT\', \'128M\');
define(\'WP_AUTO_UPDATE_CORE\', \'minor\');
EOL

### Clone DB and update site name
echo "Starting clone of Database"
cd "$destDir"
wp db export prod.sql --path="$sourceDir"
wp db reset --yes
wp db import prod.sql && rm -f prod.sql

wp option update siteurl http://test.yoursite.com
wp option update home http://test.yoursite.com
wp option update blogname \'Yoursite TEST\'

echo "Searching and replacing domain name. Please wait this takes several minutes"
wp search-replace \'yoursite.com\' \'test.yoursite.com\' \'wp_posts\'
wp rewrite flush

### Disable plugins
wp plugin deactivate w3-total-cache
wp plugin deactivate wordfence

echo "Done"
exit 0

还有一些网站托管公司，包括站点克隆功能（临时站点）；例如WP Engine, SiteGround 和其他人。