Linux CLI for Noobies
Linux.com continues its series
Linux CLI for noobies.
"If that were the end of the command, cat would assume that the console is the stdout and print the contents of phones.txt there. But that's too easy. In this example, we have linked the stdoutfrom cat to become the stdin of grep. That's what the pipe operator does. It pipes output from one process to another process as its input."
(Submitted by Noel Thu Jan 8, 2004 )
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