Function to change ownership of the www folder

Just another snippet of code that can be implemented somewhere:

set-perms.sh

#!/bin/bash

# Function to change ownership of the www folder
change_ownership() {
    sudo chown -R "$1":www-data /var/www
    echo "Ownership of the www folder has been set to $1:www-data."
}

# Loop until a valid username is provided
while true; do
    # Prompt the user to enter the desired username
    read -p "Enter the username for permissions: " username

    # Check if the username provided exists
    if id "$username" &>/dev/null; then
        change_ownership "$username"
        break  # Exit the loop if a valid username is provided
    else
        echo "Error: User $username does not exist."
    fi
done

echo "done!"

To make the script executable:

sudo chmod +x set-perms.sh

and run it with

sudo ./set-perms.sh