Telnet allows clients to connect to other remote systems.
Under Windows the command is mstsc.Microsoft terminal server connection
ssh or telnet in company environment mostly we used ssh and there is one tool called putty, through putty we can connect.
Example of multi-user OS include Unix server & thin client.. In the Unix server, multiple remote users have the access to the Unix shell at the same time. In the case of thin client, multiple X WINDOW sessions are spread across various terminals. These terminals are powered by a single machine.
There is no traditional 'execute' command in Unix.
There is no standard 'format' command in Unix.
The 'CD' command is not standard for Unix. The 'cd' command, however, will change directories (folders). It is a means of navigating the Unix file system.
In Unix, use the 'man' command.
The "who" command.
cat /proc/version The above answer will only work on certain systems. For most Unix systems, use the 'uname' command to get the Unix version. AIX uses the oslevel command.
dig
nslookup
Believe it or not, nslookup.