https://askubuntu.com/questions/898941/how-to-check-ram-size
ram
free -m
free -g
https://askubuntu.com/questions/73160/how-do-i-find-the-amount-of-free-space-on-my-hard-drive
disk
df -h --total
https://askubuntu.com/questions/732794/how-to-show-top-ten-memory-consuming-processes-with-ps
list of top 10 memory consuming process
ps aux --sort -rss | head -11
df -h --totalhttps://askubuntu.com/questions/732794/how-to-show-top-ten-memory-consuming-processes-with-pslist of top 10 memory consuming process