who

Show who is logged in

low risk

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

Lists current login sessions. See the flags and examples below, and run `man who` for the full reference.

Common flags
FlagMeaning
-aAll information
-bLast boot time
Examples
who -aDetailed sessions · explain & risk-check →
Related
w last
Open the full explainer →More in System & Processes

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