How use Linux or Unix commands to navigate to your WordPress installation directory and delete the problematic plugin?

To navigate to your WordPress installation directory and delete a problematic plugin using Linux or Unix commands, you can follow these steps:

1. First, open a terminal or SSH into your server.

2. Navigate to your WordPress installation directory. Typically, this might be in a location like '/var/www/html/' or '/home/username/public_html/', but it can vary depending on your server setup. You can use the 'cd' command to change directories. For example:

   cd /var/www/html/

3. Once in your WordPress directory, navigate to the plugins folder:

   cd wp-content/plugins/

4. List the contents of the plugins directory to find the plugin you want to delete:

   ls -l

5. Identify the folder name of the problematic plugin.

6. To delete the plugin, use the 'rm' command with the '-r' flag (for recursive deletion of directories). Replace 'plugin-folder-name' with the actual name of the plugin folder:

   rm -r plugin-folder-name

After deleting the plugin, you may want to clear any caches and refresh your WordPress admin area to ensure the changes are reflected.

It's important to note that if you're experiencing issues with plugin installations or deletions, it could be due to file permissions. Ensure that your web server has the correct permissions to write to the plugins directory. If problems persist, you may need to check and adjust file ownership and permissions.

Always make sure to back up your WordPress site before making any significant changes or deletions.
Sources
WordPress tutorial for AWS Cloud9 - AWS Cloud9
Wordpress Issues Lightsail | AWS re:Post