Describe pipes in Unix

1.	Describe pipes in Unix
Answer» A pipe is a unidirectional mechanism of INTERPROCESS communication. In a Unix COMMAND line, if a pipe is being used, the first process is ASSUMED to be WRITING to stdout and the second is assumed to be reading from stdin. $who \| sort \| lpr This will create 3 PROCESSES with 2 pipes in between them.

Answer»

A pipe is a unidirectional mechanism of INTERPROCESS communication. In a Unix COMMAND line, if a pipe is being used, the first process is ASSUMED to be WRITING to stdout and the second is assumed to be reading from stdin.

$who | sort | lpr

This will create 3 PROCESSES with 2 pipes in between them.

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Describe pipes in Unix

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