Great program for troubleshooting network issues and restarting system. It's simple interface and straightforward layout make it easy for anyone to figure out which systems are up, what is happening on the network, and startup or shutdown the programs and the system very easily.In Unix and Linux, the shutdown command can be used to turn off or reboot a computer. Only the superuser can shut the system down. One commonly issued form of this command is shutdown -h now, which will shut down a system immediately. Another one is shutdown -r now to reboot. Another form allows the user to specify an exact time or a delay before shutdown: shutdown -h 20:00 will turn the computer off at 8:00 PM, and shutdown -r -t 60 will automatically reboot the machine within 60 seconds (one minute) of issuing the command.