add-cron.sh

#!/bin/bash
#author: salman sk

# Function to add a job to crontab
add_to_cron() {
    local script_path="$1"
    local interval="$2"
    local description="$3"
    if ! crontab -l 2>/dev/null | grep -q "$script_path"; then
        (crontab -l 2>/dev/null; echo "$interval $script_path") | crontab -
        echo "Scheduled $description to run every $interval."
    else
        echo "$description is already scheduled in cron."
    fi
}

ask_user() {
    local prompt="$1"
    while true; do
        read -p "$prompt [y/n]: " yn
        case $yn in
            [Yy]* ) return 0;;  # Return 0 (true) if user responds with 'yes'
            [Nn]* ) return 1;;  # Return 1 (false) if user responds with 'no'
            * ) echo "Please answer yes or no.";;  # Prompt again for invalid responses
        esac
    done
}

if ask_user "Do you want to set up the default cron to optimize SQL databases every 12 hours?"; then
    add_to_cron "$(pwd)/sql_tooner" "0 */12 * * *" "SQL optimization"
fi

if ask_user "Do you want to set up the default cron to clear the mail queue and manage emails every 12 hours?"; then
    add_to_cron "$(pwd)/mail" "0 */12 * * *" "Mail queue management"
fi

if ask_user "Do you want to set up the default cron to clean the kernel and update it if available every 12 hours?"; then
    add_to_cron "$(pwd)/clean_kernels" "0 */12 * * *" "Kernel cleaning and updates"
fi

if ask_user "Do you want to set up the default cron to clean the RAM every 6 hours?"; then
    add_to_cron "$(pwd)/cleanRAM" "0 */6 * * *" "RAM cleaning"
fi

if ask_user "Do you want to set up the default cron to monitor services and try to fix any failures automatically every 1 hour?"; then
    add_to_cron "$(pwd)/check_services" "0 * * * *" "Service monitoring and fixing"
fi

if ask_user "Do you want to set up the default cron to optimize the system every 24 hours?"; then
    add_to_cron "$(pwd)/system_opt" "0 0 * * *" "System optimization"
fi

if ask_user "Do you want to set up the default cron to perform various system audits every 24 hours?"; then
    add_to_cron "$(pwd)/Audit" "0 0 * * *" "System auditing"
fi

if ask_user "Do you want to set up the default cron to generate reports every 12 hours?"; then
    add_to_cron "$(pwd)/report" "0 */12 * * *" "Report generation"
fi

if ask_user "Do you want to set up the default cron to clear and rotate logs every 24 hours?"; then
    add_to_cron "$(pwd)/logrotate" "0 0 * * *" "Log rotation"
fi

echo "adding automatic update check,"
add_to_cron "$(pwd)/update" "0 2 * * *" "Automatic update check for 1 only manajor"

if ask_user "Do you want to install Fail2Ban now to help prevent brute-force attacks, or will you do it manually later?"; then
    if [ -f "$(pwd)/install_failtoban" ]; then
        "./install_failtoban"
        echo "Fail2Ban has been installed."
    else
        echo "install_failtoban not found in the current directory."
    fi
else
    echo "You chose to install Fail2Ban manually later."
fi

if [ -f "./configure-details.sh" ]; then
    ./configure-details.sh
else
    echo "configuration script not found. Exiting."
    exit 1
fi