lsattr

List file attributes

low risk

interactive breakdown — edit the command and press Explain
$ 
What it does

Shows extended attributes such as immutable (i) and append-only (a) flags on ext filesystems.

Common flags
FlagMeaning
-RRecurse
-aInclude hidden files
-dList directories themselves
Examples
lsattr /etc/passwdShow attributes · explain & risk-check →
Related
chattr
Open the full explainer →More in Files & Archives

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