Pipes and more pipes on Linux

Most people who spend time on the Linux command line move quickly into using pipes. In fact, pipes were one of the things that really got me excited when I first used the command line on a Unix system. My appreciation of their power and convenience continues even after decades of using Linux. Using pipes, I discovered how much I could get done by sending the output of one command to another command, and sometimes a command after that, to further tailor the output that I was looking for. Commands incorporating pipes – like the one shown below – allowed me to extract just the information that I needed without having to compile a program or prepare a script.

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Source:: Network World – Linux