One of the cool features of UNIX is that you don't need to have any software installed to send message to users logged on to that machine. There is a handy command called "write" which enables you to do this....
Everyone knows that CPU utiization in windows can be found out from Windows Task Manager. But what about Linux? Well Linux has also got set of utilities to monitor CPU utilization. With these commands you can find out total CPU...
If you use an RSS reader, you can subscribe to a feed of all future entries tagged 'Linux'.