How Does Unix Pipe Work?

In Unix-like computer operating systems, a pipeline is a mechanism for inter-process communication using message passing. A pipeline is a set of processes chained together by their standard streams, so that the output text of each process (stdout) is passed directly as input (stdin) to the next one.

How does the pipe work in Linux?

In Linux, the pipe command lets you sends the output of one command to another. Piping, as the term suggests, can redirect the standard output, input, or error of one process to another for further processing.

How does pipe work shell?

The pipe connects the standard output of the process to the left to the standard input of the process of the right. You can think of it as a dedicated program that takes care of copying everything that one program prints, and feeding it to the next program (the one after the pipe symbol).