chage

Manage password aging

medium risk

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

Shows or changes password expiry policy per user.

Common flags
FlagMeaning
-lList aging info
-EAccount expiry date (-E0 expires now)
-MMaximum password age
-dSet last password change date
Examples
chage -l aliceShow policy · explain & risk-check →
chage -E0 aliceExpire the account now · explain & risk-check →
Related
passwd usermod
Open the full explainer →More in Users, Permissions & Security

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