https://www.youtube.com/watch?v=eIR_QprrE40&t=191s (opens in a new tab)
NCDU
alternative instructions:
amazon-linux-extras install epel
yum install ncdu
https://gist.github.com/MrHassanMurtaza/e0ad1bc08f19e54a522507d78707e8c4 (opens in a new tab)
Check journal files
journalctl --disk-usage
directory: /var/log/journal