Jul 8, 2021 · I ran into the same problem while trying to ran a backup. But on my pfsense (AMD G-T40E Processor) I do not even find a directory /usr/local/pfsense. Also I can not find "backup.inc". The WebGUI tells me to update to 2.6.0. Could this be a solution to restore the missing file / directory or will this lead to a total crash? Regards, Sebastian Jul 24, 2021 · How to Save Laravel 9 App Backup on Dropbox Storage. Step 1: Install Laravel Project. Step 2: Add Database Credentials. Step 3: Install Laravel Spatie. Step 4: Get Dropbox Access Token. Step 5: Configure Dropbox FileSystem. Step 6: Add Dropbox Access Key. Step 7: Clear Config Cache. Step 8: Take Backup and Store on Dropbox. Apr 24, 2021 · chrissi55 April 25, 2021, 4:56am 2. you may try this command from a terminal on your NC Server. sudo -u www-data php updater/updater.phar. after upgrade has finished, you can complete with. sudo -u www-data php /location-of-your-nextcloud/occ upgrade. don’t forget to update columns and indices of your database. Traffle April 26, 2021, 3:18am 3. Jul 5, 2022 · php artisan database:backup. This will create a backup file in you storage/app/backup folder you may check it. Also Read: Upload Images to Server PHP Tutorial (2022) Step 5: Setup on Server. Jun 6, 2021 · When no command is given display help for the list command -q, --quiet Do not output any message -V, --version Display this application version --ansi Force ANSI output --no-ansi Disable ANSI output -n, --no-interaction Do not ask any interactive question --env[=ENV] The environment the command should run under -v|vv|vvv, --verbose Increase the ... A site backup allows a site administrator to save everything associated with a moodle site. These backups can be restored to bring a site back to the point in time when the backup was made. Performing regular backups are highly recommended to reduce the amount of lost information in the event of a problem on the site and to speed the overall ... Nov 18, 2018 · With a proper backup of your WordPress database and files, you can quickly restore things back to normal. Instructions to back up your WordPress site include: WordPress Site and your WordPress Database. Automatic WordPress backup options. In addition, support is provided online at the WordPress Support Forum to help you through the process. See full list on jotform.com Jul 24, 2021 · How to Save Laravel 9 App Backup on Dropbox Storage. Step 1: Install Laravel Project. Step 2: Add Database Credentials. Step 3: Install Laravel Spatie. Step 4: Get Dropbox Access Token. Step 5: Configure Dropbox FileSystem. Step 6: Add Dropbox Access Key. Step 7: Clear Config Cache. Step 8: Take Backup and Store on Dropbox. Mar 20, 2015 · 1. backup.php isn't in version 2.6, but one can place the backup.php file from 2.7/2.8 moodle files in moodlecode/admin/cli/ and it will work. And, since I no longer have any version below 2.6 don't know that it will work in earlier versions of Moodle, but it doesn't hurt to try it! Jan 14, 2020 · There are no automated backups currently going. Backups are all disabled. I tried to run 1 backup of a >5 GB course manually via cli (sudo -u apache php admin/cli/backup.php --courseid=x) at about 7:35AM server time. You can see the CPU spike on the graph. Moodle was so slow that it was unusable and I had to cancel the backup. Oct 22, 2018 · Using phpMyAdmin to Back Up or Restore MySQL. If you’re running phpMyAdmin backing up and restoring your MySQL database is simple. The export function is used as a backup, and the import function is used to restore. Step 1: Create a MySQL Database Backup. 1. Open phpMyAdmin. On the directory tree on the left, click the database you want to ... BackupBuddy covers all four backup elements in one single plugin. Back up your entire WordPress website (database + all WP files). Set up backup schedules to run automatically. Send and store your backup files off-site in a safe, secure location. Restore your WordPress website quickly & easily from a backup. Compatibility: PHP Script used to backup the database, rather than system commands. Improvement: Update admin pages to use WP UI/UX standards. Improvement: Improved UI in regards to time zones. Improvement: Failed items on Preflight Check page are highlighted in red. Improvement: Send an email if a backup fails via cron. Nov 2, 2022 · Use the following steps to store the backup on google drive in laravel 9 apps; as follows: Step 1 – Setup Google Drive Account. Step 2 – Install Laravel 9 App. Step 3 – Connecting App to Database. Step 4 – Install spatie/laravel-backup. Step 5 – Setup Google Drive as Filesystem in Laravel. Step 6 – Configure Google Drive Details. Nov 18, 2018 · With a proper backup of your WordPress database and files, you can quickly restore things back to normal. Instructions to back up your WordPress site include: WordPress Site and your WordPress Database. Automatic WordPress backup options. In addition, support is provided online at the WordPress Support Forum to help you through the process. Jun 25, 2022 · 1. The image below displays the folder and file components of the project. How to Backup Database in PHP and MySQL Free Source code and Tutorial – folder components assets – this includes the bootstrap files such as bootstrap.css, js files and others. May 9, 2018 · También te puede interesar: Cómo restaurar una base de datos MySQL usando PHP. Creando nuestra función de respaldo. A continuación, creamos la función de respaldo y descarga nuestra base de datos MySQL. Crea un nuevo archivo, nómbralo como «function.php» y pega el código a continuación. Jul 24, 2021 · How to Save Laravel 9 App Backup on Dropbox Storage. Step 1: Install Laravel Project. Step 2: Add Database Credentials. Step 3: Install Laravel Spatie. Step 4: Get Dropbox Access Token. Step 5: Configure Dropbox FileSystem. Step 6: Add Dropbox Access Key. Step 7: Clear Config Cache. Step 8: Take Backup and Store on Dropbox. Jan 3, 2019 · Hi, I'm using your package to backup my database, I configured backup.php as: return [ 'backup' => [ /* * The name of this application. You can use this name to monitor * the backups... Skip to content Toggle navigation Apr 14, 2023 · To get started with Laravel Backup, make sure the config file is published to config/laravel-backup.php. Execute the specified command to accomplish this task. php artisan vendor:publish --provider="Spatie\Backup\BackupServiceProvider" Here is the file you can look at to see the backup configuration's default contents. Compatibility: PHP Script used to backup the database, rather than system commands. Improvement: Update admin pages to use WP UI/UX standards. Improvement: Improved UI in regards to time zones. Improvement: Failed items on Preflight Check page are highlighted in red. Improvement: Send an email if a backup fails via cron. Admin tools ::: tool_brcli. Maintained by Paulo Júnior. BrCLI (Backup & Restore Command-Line Interface) is a plug-in integrated in Moodle that allows administrators to backup and restore courses via a command line interface. Latest release: 4 years. 1074 sites. Jun 25, 2022 · 1. The image below displays the folder and file components of the project. How to Backup Database in PHP and MySQL Free Source code and Tutorial – folder components assets – this includes the bootstrap files such as bootstrap.css, js files and others. Jan 3, 2019 · Hi, I'm using your package to backup my database, I configured backup.php as: return [ 'backup' => [ /* * The name of this application. You can use this name to monitor * the backups... Skip to content Toggle navigation Jun 15, 2021 · How to backup MySQL database in PHP? Ask Question Asked 13 years, 7 months ago Modified 9 months ago Viewed 176k times Part of PHP Collective 48 I don't have a basic understanding of how backup of a MySQL database through PHP would work. I have followed one tutorial but it didn't help me understand. Jan 31, 2022 · Go to page #2 to see my updated script on making a free website backup in PHP and MySQL. Backup Website PHP & MySql Step #1. When you first started your website you should of been given a hosting control panel. Sometimes this is cPanel, Paraless Pleask, ISP Config or something similar. You want to create a FTP account. Backup Website PHP ... C:\xampp\php\php.exe -f D:\Projects\php\Live\tested_app\backup_databse_php\backup.php. In the above code, echo off will clear the command prompt window at the time of execution. Then you need to give the physical path of the php.exe file and the php script file that to be run through command prompt. Now you need to open the “Scheduled Tasks ... The tarball includes: *. * an OpenEMR database dump (openemr.sql.gz) * the OpenEMR web directory (openemr.tar.gz) *. * The OpenEMR web directory is important because it includes config-. * uration files, patient documents, and possible customizations, and. * also because the database structure is dependent on the installed. Admin tools ::: tool_brcli. Maintained by Paulo Júnior. BrCLI (Backup & Restore Command-Line Interface) is a plug-in integrated in Moodle that allows administrators to backup and restore courses via a command line interface. Latest release: 4 years. 1074 sites. Jan 14, 2020 · There are no automated backups currently going. Backups are all disabled. I tried to run 1 backup of a >5 GB course manually via cli (sudo -u apache php admin/cli/backup.php --courseid=x) at about 7:35AM server time. You can see the CPU spike on the graph. Moodle was so slow that it was unusable and I had to cancel the backup. Mar 6, 2019 · The new FreePBX backup now allows each module to handle their own data. To see modules that implement the new backup you can run the command: fwconsole bu --Implemented. Please note in 15 the backup and restore methods are removed. Please remove these from the modules BMO class. They are unimplemented. Dec 27, 2022 · To install the package, open your terminal window and type the following command: composer require spatie/laravel-backup. After execution, the PHP artisan command spatie sends the mail regarding ... Mar 8, 2011 · Yep, it should be as easy as that. You need the base PHP class ("xmlapi.php") and the sample script ("mybackupscript.php"). In "mybackupscript.php" change the path value for the PHP class include function, and then the values for those top nine variables. Cheers,-DavidN Nov 2, 2022 · Use the following steps to store the backup on google drive in laravel 9 apps; as follows: Step 1 – Setup Google Drive Account. Step 2 – Install Laravel 9 App. Step 3 – Connecting App to Database. Step 4 – Install spatie/laravel-backup. Step 5 – Setup Google Drive as Filesystem in Laravel. Step 6 – Configure Google Drive Details. BackupBuddy covers all four backup elements in one single plugin. Back up your entire WordPress website (database + all WP files). Set up backup schedules to run automatically. Send and store your backup files off-site in a safe, secure location. Restore your WordPress website quickly & easily from a backup. Jul 8, 2021 · I ran into the same problem while trying to ran a backup. But on my pfsense (AMD G-T40E Processor) I do not even find a directory /usr/local/pfsense. Also I can not find "backup.inc". The WebGUI tells me to update to 2.6.0. Could this be a solution to restore the missing file / directory or will this lead to a total crash? Regards, Sebastian 1. Simple Backup Files – PHP Script. Simple Backup Files is an advanced PHP script using which you can simply create backups of web files. It allows you to store them on different cloud platforms like Google Drive and Dropbox. With this script you can setup details like Backup-Folder, Filename, auto delete, define admin email, Dropbox API and ... The sqlite3 command line tool features the .backup dot command. You can connect to your database with: sqlite3 my_database.sq3. and run the backup dot command with: .backup backup_file.sq3. Instead of the interactive connection to the database, you can also do the backup and close the connection afterwards with. Feb 23, 2022 · It's just a folder...you can back it up in the many normal ways you can backup any folder on a computer. It's unclear what the problem is, or how it relates to PHP programming. It sounds like an system administrator task. I'd probably advise you to back up your whole site though (and your database), not just one folder. – Feb 26, 2023 · MediaWiki file: dumpBackup.php. • • 1.39.4 • 1.35.11. dumpBackup.php file creates an XML dump for export or backup. XML dumps contain the content of the wiki (wiki pages with all their revisions), without the site-related data. DumpBackup.php does not create a full backup of the wiki database, the dump does not contain user accounts ... PHP Backup Utility - Creates and encrypts database and file backups, syncs your backups to other servers or cloud services and assists you monitor your backup process. php backup mongodb-backup redis-exporter mysql-backup postgresql-backup encrypted-backups hacktoberfest. Updated 2 weeks ago. PHP. Aug 31, 2022 · Backup of zabbix Database. 31-08-2022, 10:32. Hello everyone. we are using zabbix to monitor our network with over 1000 hosts. the Database is quite large now and ists hard to do a complete backup. Now we ware thinking about to just backup the config tables / templates but not the collected data. Anyone can point out the nessesarey tables to ... Dec 13, 2021 · Re: CLI backup.php AND include grade histories. You may have already tried some of these but here are some of my first ideas: backup_general_logs might need to be set. backup_general_users might need to be set. If it is a comprised server, default permissions might have changed for the admin user. Apr 12, 2018 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand Jul 11, 2011 · 1. The best way to automate MySQL DB backup is to use some backup software in conjunction with phpmyadmin utility. The second way, often having an advantage of no extra payment and a disadvantage of uncontrolled security, is implementing some script with cron. ';","}","","$backupDatabase = new Backup_Database(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME, CHARSET);","","// Option-1: Backup tables already defined above","$result ... See full list on jotform.com Mar 8, 2011 · Yep, it should be as easy as that. You need the base PHP class ("xmlapi.php") and the sample script ("mybackupscript.php"). In "mybackupscript.php" change the path value for the PHP class include function, and then the values for those top nine variables. Cheers,-DavidN Jun 6, 2021 · When no command is given display help for the list command -q, --quiet Do not output any message -V, --version Display this application version --ansi Force ANSI output --no-ansi Disable ANSI output -n, --no-interaction Do not ask any interactive question --env[=ENV] The environment the command should run under -v|vv|vvv, --verbose Increase the ... Sep 16, 2018 · Make sure you have the project selected at the top. Then go to Library and click on “Drive API” under “Google Apps APIs”: And then enable the Google Drive API. Then, go to “Credentials ... Apr 14, 2023 · To get started with Laravel Backup, make sure the config file is published to config/laravel-backup.php. Execute the specified command to accomplish this task. php artisan vendor:publish --provider="Spatie\Backup\BackupServiceProvider" Here is the file you can look at to see the backup configuration's default contents. Jul 11, 2011 · 1. The best way to automate MySQL DB backup is to use some backup software in conjunction with phpmyadmin utility. The second way, often having an advantage of no extra payment and a disadvantage of uncontrolled security, is implementing some script with cron. A site backup allows a site administrator to save everything associated with a moodle site. These backups can be restored to bring a site back to the point in time when the backup was made. Performing regular backups are highly recommended to reduce the amount of lost information in the event of a problem on the site and to speed the overall ... Apr 24, 2021 · chrissi55 April 25, 2021, 4:56am 2. you may try this command from a terminal on your NC Server. sudo -u www-data php updater/updater.phar. after upgrade has finished, you can complete with. sudo -u www-data php /location-of-your-nextcloud/occ upgrade. don’t forget to update columns and indices of your database. Traffle April 26, 2021, 3:18am 3. ibase_backup ( resource $service_handle, string $source_db, string $dest_file, int $options = 0, bool $verbose = false ): mixed This function passes the arguments to the (remote) database server. There it starts a new backup process. Therefore you won't get any responses. Parameters ¶ service_handle Aug 17, 2022 · It turns out I had to execute [website-hush-information]_installer-backup.php which sits one level before the dup-installer folder.. I was trying to execute the main.installer.php inside dup-installer based on previous experience with this plugin, but in this version, this was not needed. Mar 6, 2019 · The new FreePBX backup now allows each module to handle their own data. To see modules that implement the new backup you can run the command: fwconsole bu --Implemented. Please note in 15 the backup and restore methods are removed. Please remove these from the modules BMO class. They are unimplemented. Jul 3, 2023 · Review: UpdratPlus is one of the most loved WordPress backup plugins on the market. It has over 3 million active installs and an average 4.8 out of 5 star rating. While the free version has a lot of features, we recommend upgrading to UpdraftPlus premium to unlock all its powerful backup features. 3. Oct 22, 2018 · Using phpMyAdmin to Back Up or Restore MySQL. If you’re running phpMyAdmin backing up and restoring your MySQL database is simple. The export function is used as a backup, and the import function is used to restore. Step 1: Create a MySQL Database Backup. 1. Open phpMyAdmin. On the directory tree on the left, click the database you want to ... May 11, 2022 · To publish the config file to config/backup.php run: php artisan vendor:publish --provider = "Spatie\Backup\BackupServiceProvider" The default contents of the configuration are found in the config/backup.php file. You can customize the configuration based on your requirements. There are different channels for notification and backup of the ... Changelog. The UpdraftPlus backup blog is the best place to learn in more detail about any important changes.. N.B. Paid versions of UpdraftPlus Backup / Restore have a version number which is 1 higher in the first digit, and has an extra component on the end, but the changelog below still applies. i.e. changes listed for 1.16.32.x of the free version correspond to changes made in 2.16.32.x of ... Jan 31, 2022 · Go to page #2 to see my updated script on making a free website backup in PHP and MySQL. Backup Website PHP & MySql Step #1. When you first started your website you should of been given a hosting control panel. Sometimes this is cPanel, Paraless Pleask, ISP Config or something similar. You want to create a FTP account. Backup Website PHP ... Apr 24, 2021 · chrissi55 April 25, 2021, 4:56am 2. you may try this command from a terminal on your NC Server. sudo -u www-data php updater/updater.phar. after upgrade has finished, you can complete with. sudo -u www-data php /location-of-your-nextcloud/occ upgrade. don’t forget to update columns and indices of your database. Traffle April 26, 2021, 3:18am 3. Jun 12, 2023 · The backup file can be opened with the command tar -xzf /PATH/TO/backup-<...>.mbz. Create a temporary folder to extract the backup's files into. Next step would be to open the files.xml file in a text editor, and: Search for the name of each file you want to get. Nov 4, 2018 · Launch the MySQL Workbench. Click your database instance if it is displayed on the top page. Or, Click Database -> Connect Database from top menu, enter required information and Click OK. Click Data Export in left side window. Select your WordPress databases that you want to backup. Oct 2, 2021 · Hello, As the website uses PHP 7.4, I believe that it is best to run the cronjob with PHP 7.4 as well for consistency. To check if this /usr/bin/php7.4 is the correct path to the PHP 7.4 executable, you could run the following command: Sep 22, 2020 · I am trying to backup a MS SQL database calling a Stored Procedure using PHP. When I execute de SP on SSMS, everything works fine. However, when I call it from the PHP script, I can see a ".bak" in the backup folder and right after the PHP finishes processing, the BackUp.bak file disappears. Here is the Stored Procedure: Aug 16, 2021 · Create a backup of Moodle through the Moodle Dashboard. Log into Moodle. Click Backup in the Settings on the left. The Initial settings page should display. There should be a list of Backup Settings that can be selected for configuring the Moodle backup. Select the values that need to be backed up and click Next. Aug 12, 2021 · Get 30 backup PHP scripts on CodeCanyon such as Easy Backup - Regular backups for RISE CRM, Backup Manager for MailWizz EMA, Cloud Archive - Cloud Data Backup and File Archive as SaaS Nov 4, 2018 · Launch the MySQL Workbench. Click your database instance if it is displayed on the top page. Or, Click Database -> Connect Database from top menu, enter required information and Click OK. Click Data Export in left side window. Select your WordPress databases that you want to backup. Apr 24, 2021 · chrissi55 April 25, 2021, 4:56am 2. you may try this command from a terminal on your NC Server. sudo -u www-data php updater/updater.phar. after upgrade has finished, you can complete with. sudo -u www-data php /location-of-your-nextcloud/occ upgrade. don’t forget to update columns and indices of your database. Traffle April 26, 2021, 3:18am 3. Aug 17, 2022 · It turns out I had to execute [website-hush-information]_installer-backup.php which sits one level before the dup-installer folder.. I was trying to execute the main.installer.php inside dup-installer based on previous experience with this plugin, but in this version, this was not needed. Jun 6, 2021 · When no command is given display help for the list command -q, --quiet Do not output any message -V, --version Display this application version --ansi Force ANSI output --no-ansi Disable ANSI output -n, --no-interaction Do not ask any interactive question --env[=ENV] The environment the command should run under -v|vv|vvv, --verbose Increase the ... Apr 12, 2018 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand Mar 8, 2011 · Yep, it should be as easy as that. You need the base PHP class ("xmlapi.php") and the sample script ("mybackupscript.php"). In "mybackupscript.php" change the path value for the PHP class include function, and then the values for those top nine variables. Cheers,-DavidN May 19, 2022 · Page Design. Before developing the database backup and restore system, we first need to create an interface with just two buttons. One that says backup, and another one will say restore. The buttons will act accordingly if we click on them. Please create a PHP file and use the code below to get started, or you can create your own design.
Aug 17, 2022 · It turns out I had to execute [website-hush-information]_installer-backup.php which sits one level before the dup-installer folder.. I was trying to execute the main.installer.php inside dup-installer based on previous experience with this plugin, but in this version, this was not needed. . Earth 616
Mar 20, 2015 · 1. backup.php isn't in version 2.6, but one can place the backup.php file from 2.7/2.8 moodle files in moodlecode/admin/cli/ and it will work. And, since I no longer have any version below 2.6 don't know that it will work in earlier versions of Moodle, but it doesn't hurt to try it! PHP Backup Utility - Creates and encrypts database and file backups, syncs your backups to other servers or cloud services and assists you monitor your backup process. php backup mongodb-backup redis-exporter mysql-backup postgresql-backup encrypted-backups hacktoberfest. Updated 2 weeks ago. PHP. The tarball includes: *. * an OpenEMR database dump (openemr.sql.gz) * the OpenEMR web directory (openemr.tar.gz) *. * The OpenEMR web directory is important because it includes config-. * uration files, patient documents, and possible customizations, and. * also because the database structure is dependent on the installed. Feb 26, 2023 · MediaWiki file: dumpBackup.php. • • 1.39.4 • 1.35.11. dumpBackup.php file creates an XML dump for export or backup. XML dumps contain the content of the wiki (wiki pages with all their revisions), without the site-related data. DumpBackup.php does not create a full backup of the wiki database, the dump does not contain user accounts ... Compatibility: PHP Script used to backup the database, rather than system commands. Improvement: Update admin pages to use WP UI/UX standards. Improvement: Improved UI in regards to time zones. Improvement: Failed items on Preflight Check page are highlighted in red. Improvement: Send an email if a backup fails via cron. May 11, 2022 · To publish the config file to config/backup.php run: php artisan vendor:publish --provider = "Spatie\Backup\BackupServiceProvider" The default contents of the configuration are found in the config/backup.php file. You can customize the configuration based on your requirements. There are different channels for notification and backup of the ... May 11, 2022 · To publish the config file to config/backup.php run: php artisan vendor:publish --provider = "Spatie\Backup\BackupServiceProvider" The default contents of the configuration are found in the config/backup.php file. You can customize the configuration based on your requirements. There are different channels for notification and backup of the ... Aug 17, 2022 · It turns out I had to execute [website-hush-information]_installer-backup.php which sits one level before the dup-installer folder.. I was trying to execute the main.installer.php inside dup-installer based on previous experience with this plugin, but in this version, this was not needed. ibase_backup ( resource $service_handle, string $source_db, string $dest_file, int $options = 0, bool $verbose = false ): mixed This function passes the arguments to the (remote) database server. There it starts a new backup process. Therefore you won't get any responses. Parameters ¶ service_handle Apr 14, 2023 · To get started with Laravel Backup, make sure the config file is published to config/laravel-backup.php. Execute the specified command to accomplish this task. php artisan vendor:publish --provider="Spatie\Backup\BackupServiceProvider" Here is the file you can look at to see the backup configuration's default contents. May 9, 2018 · También te puede interesar: Cómo restaurar una base de datos MySQL usando PHP. Creando nuestra función de respaldo. A continuación, creamos la función de respaldo y descarga nuestra base de datos MySQL. Crea un nuevo archivo, nómbralo como «function.php» y pega el código a continuación. ';","}","","$backupDatabase = new Backup_Database(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME, CHARSET);","","// Option-1: Backup tables already defined above","$result ... Mar 8, 2011 · Yep, it should be as easy as that. You need the base PHP class ("xmlapi.php") and the sample script ("mybackupscript.php"). In "mybackupscript.php" change the path value for the PHP class include function, and then the values for those top nine variables. Cheers,-DavidN Dec 27, 2022 · To install the package, open your terminal window and type the following command: composer require spatie/laravel-backup. After execution, the PHP artisan command spatie sends the mail regarding ... Dec 12, 2009 · I think Bazaar is the default but this can depend on your distribution. Using a DVCS allows you to push the entire history from the server's vcs to a remote server regularly (via a cronjob for example), in effect creating a local versioned history, with an identical remote backup. You could use a private github, bitbucket, or whatever account ... Jun 15, 2021 · How to backup MySQL database in PHP? Ask Question Asked 13 years, 7 months ago Modified 9 months ago Viewed 176k times Part of PHP Collective 48 I don't have a basic understanding of how backup of a MySQL database through PHP would work. I have followed one tutorial but it didn't help me understand. .