aide

File integrity checker

low risk

interactive breakdown — edit the command and press Explain
$ 
⚠ Risks & cautions
What it does

Compares the filesystem to a database of hashes to detect tampering.

Common flags
FlagMeaning
--init --initBuild a new baseline⚠ Overwrites the baseline you trust.
--check --checkCompare against the baseline
--update --updateCreate a new database
Examples
aide --checkRun an integrity check · explain & risk-check →
Related
sha256sum auditctl
Open the full explainer →More in Users, Permissions & Security

Reference text is hand-written and may be incomplete — check man aide for your version. Test destructive commands on a non-production system first.