#Quick clean up
sudo apt-get autoremove
sudo du -sh /var/cache/apt #clean apt cache
sudo apt-get autoclean
sudo apt-get clean
journalctl --disk-usage
du -h /var/lib/snapd/snaps #remove old versions of snap
rm -rf ~/.cache/thumbnails/* #clean thumbnail cache
#Detailed iformation
https://itsfoss.com/free-up-space-ubuntu-linux/
df -h
or
df -h --total
or
lsblk
df -h
sudo apt-get autoremove &&
sudo du -sh /var/cache/apt &&
sudo apt-get clean &&
sudo apt-get remove --purge &&
sudo journalctl --vacuum-time=1d &&
rm -rf ~/.cache/thumbnails/*
sudo apt install ncdu
ncdu
du -sk * | sort -nr | head -10
# Just open System Monitor from Dash and select the Filesystems tab!!!