Disk & Filesystem Management (Du/Df/Lsblk/Fstrim)

Pinpointing Space Hogs with NCDU

🧩 The Challenge

Standard du output is often difficult to parse when trying to identify exactly which subdirectories are consuming the most disk space. Manually navigating tree structures to find large files is tedious and inefficient.

💡 The Fix

Use an interactive, ncurses-based disk usage analyzer to visualize space consumption and quickly navigate through high-density storage directories.

sudo apt install ncdu && ncdu /

⚙️ Why It Works

This utility provides a real-time, sortable interface that allows you to drill down into directory sizes dynamically without running multiple recursive command iterations.

🚀 Pro-Tip: Use the -x flag to limit the scan to a single filesystem, preventing the tool from traversing mounted network shares or external drives.

Linux Tips & Tricks | © ngelinux.com | 7/9/2026