When you type commands in the terminal, that’s **standard input**. When you run the command, the results typically go to **standard output**. This input/output model allows you to chain commands ...

Here at work we use an old SCO UNIX system for some of the day to day operations. To make my role as desktop support a little faster I was hoping to write a script that would kill all of the TTYs ...

Dave Taylor has been hacking shell scripts on UNIX and Linux systems for a really long time. He's the author of Learning Unix for Mac OS X and Wicked Cool Shell Scripts.You can find him on Twitter as ...