ncdu
Ncdu is a disk usage analyzer with an ncurses interface.
bash
sudo apt-get install -y ncdu
ncdu /
Analyze command
bash
# Check disk space
df -h
# Show files size larger than 100M
find . -type f -size +100M
# Show sorted folders size
du -hd1 | sort -h
Some safe commands
bash
# Clean the apt cache
sudo apt clean
# Delete old log files
sudo find /var/log -type f -name "*.gz" -delete
# Delete unused docker images
docker image prune