This is a short discreption of the following commands "finger", "who", "uptime" and "mv".

Finger- Display's information about local and remote users. It displays information like user name, user's full name, terminal name, idle time, and login time.

Who- The who comand shows who is on the system at that time. The who utility can list the user's name, terminal line, login time, elapsed time since activity occurred on the line, and the process-ID of the command interpreter (shell) for each current UNIX system user. It examines the /var/adm/utmp file to obtain its information.

Uptime- The uptime command shows how long the server has been up and running for since last reset.

Mv- The mv command rename's source to dest, or move source(s) to directory.