#!/bin/bash

# up
# update only if last update was more than n minutes ago

n="5"

# checks
command -v apt >/dev/null 2>&1 || { echo "No 'apt' on this system, exiting." >&2; exit 1; }
[[ -d /var/lib/apt/lists ]] || exit

# action
if [[ -z "$(find -H /var/lib/apt/lists -maxdepth 0 -cmin -"$n")" ]]; then

    sudo apt-get update && sudo apt-get dist-upgrade -y
    sudo touch /var/lib/apt/lists
    
else

    echo "nope"

fi