du disk usage tips — authorized directory size literacy

Last updated: · By the BinBench editorial team · Stars and releases checked via the GitHub API
For legal, authorized and educational use only. Only analyze software you own or have written permission to examine.
Quick answer

du helps authorized labs measure directory sizes on hosts they own. Pair with df-disk-tips, df-inode-tips, and ncdu-scan-tips.

On this page

Snapshot

FieldValue
Surfacedu tip checklist
JobAuthorized directory size literacy
df peerdf-disk-tips
inode peerdf-inode-tips
ncdu peerncdu-scan-tips

Tip checklist (authorized only)

  1. Confirm you may scan the tree (lab VM / your server / courseware).
  2. Prefer du -sh * or du -h --max-depth=1 over dumping every leaf.
  3. Record path + size you actually see; note units (K/M/G).
  4. Quote a short top-N; avoid pasting whole home directories.
  5. If filesystem totals (not directory) are the question, cross-check df-disk-tips.
  6. Optional: interactive drill-down → ncdu-scan-tips; inodes → df-inode-tips.
  7. Optional: block devices → lsblk-disk-tips; Mem/Swap → free-disk-tips.
  8. Redact usernames, home paths, and sensitive project names before sharing.

Allowed framing

  • Classroom labs finding large build caches on trees you own.
  • Binding path + size notes as Evidence.
  • Documenting "permission denied / symlink loops / empty dirs" as valid lab outcomes.
  • Comparing du ↔ df / ncdu under one binder.

Scope we will not cover

  • No crack/pirate/keygen via du.
  • No persistence / unauthorized-access / bypass PoCs via du.
  • No credential-theft via path or filename dumps.
  • No intentional fill/wipe recipes against storage you do not own.

Beginner path (authorized only)

  1. Obtain one syllabus-approved lab VM you control.
  2. Run du -h --max-depth=1 on a project tree you own; quote top sizes.
  3. Bind path + size as Evidence; redact sensitive labels.
  4. Optional: compare filesystem totals with df-disk-tips.
  5. Stop at literacy — no unauthorized-access cookbooks.
Which to pick
  • Prefer authorized, short, redacted Evidence.
  • Use df / ncdu / inode peers when the syllabus asks.
  • No exploit, crack, or unauthorized-access framing.

For legal, authorized and educational use only.

FAQ

What is a "du disk usage tip" page in BinBench framing?

A checklist for inspecting authorized directory sizes on hosts you own — not a cookbook for scanning trees you do not control.

How does this relate to df-disk-tips and ncdu-scan-tips?

df-disk-tips covers filesystem totals. ncdu-scan-tips covers interactive ncdu. This page zooms on du summary/depth Evidence — it does not overwrite those pages.

Can I du other users\' home trees I do not administer?

No. Authorization first. BinBench will not publish crack/bypass or unauthorized-access recipes.

Does this teach exploit / bypass PoCs via du?

No. Mentions of exploit/bypass appear only as refusals. Authorized du literacy only.

Does this teach credential theft via path dumps?

No. Redact usernames, home paths, and project names that expose PII before sharing.

Sources