Save as a file if you need further help to restore UNA permissions set_permissions.sh

#!/bin/bash
# Filename: set_permissions.sh

# Move into the 'una' directory
cd una || { echo "Directory 'una' not found!"; exit 1; }

# Change the owner of all files and folders to 'www-data'
sudo chown -R www-data:www-data .

# Set permissions for all directories to 755:
# 7 = read (4) + write (2) + execute (1) for the owner
# 5 = read (4) + execute (1) for the group
# 5 = read (4) + execute (1) for others
sudo find ./ -type d -exec chmod 755 {} \;

# Set permissions for all files to 644:
# 6 = read (4) + write (2) for the owner
# 4 = read (4) for the group
# 4 = read (4) for others
sudo find ./ -type f -exec chmod 644 {} \;

# Give execute permission to ffmpeg.exe (since it's an executable)
sudo chmod +x ./plugins/ffmpeg/ffmpeg.exe

# Go back to the previous directory
cd ..

# Set this script's owner to 'root' and permissions to 755
# If you want, replace 'root' below with your SSH username
sudo chown root:root set_permissions.sh
sudo chmod +x set_permissions.sh

# Display confirmation message
echo "Permissions successfully set. Script permissions preserved."

How to use:

1. Create the file:

vim set_permissions.sh

1. Press i to enter Insert mode.
2. Paste the code from above.
3. Save and close:

• Press ESC
• Type :wq
• Press Enter

Final steps:

• Make the script executable:

sudo chmod +x set_permissions.sh

• Run it anytime to restore your file and folder permissions:

./set_permissions.sh

What this script does:

• Sets the correct ownership (www-data:www-data) and permissions for your una/ project.
• Makes sure ffmpeg.exe stays executable.
• Preserves its own permissions as root:root with 755, so it’s always ready to use safely.

Directory Structure

your_project/
├── set_permissions.sh   ← This script is here
└── una/                 ← The UNA CMS directory

Happy coding!