# who # Display who is logged in and related data (processes, boot time). # More information: <https://www.gnu.org/software/coreutils/who>. # Display the username, line, and time of all currently logged-in sessions: who # Display information only for the current terminal session: who am i # Display all available information: who -a # Display all available information with table headers: who -a -H $Follow @igor_chubin cheat.sh tldr