List the logged-in users
who [file]
who am I
Neutrino
- file
 
- The file that contains information about the logged-in users.
  If you don't specify a file, the utility looks at
  /var/log/utmp.
  
 
The who utility displays information about the logged-in users:
- If you specify no arguments or a file, who displays a list of
  all logged-in users.
 
- If you specify who am I (or who am i), the
  utility displays the terminals you're logged into.
 
rwho