What a named pipe is
A named pipe is a method that lets separate programs communicate by passing data between them, using an object that appears within the file system. It extends the idea of a simple pipe, which carries data from one program to another, by giving the pipe a name that exists in the file system. This lets programs find and use it, even if they are not directly related.
Pipes and communication
A pipe is a basic way for one program to send a stream of data to another. The output of one becomes the input of the other, flowing through the pipe. This is a common form of communication between processes. A named pipe builds on this by making the pipe a named entity, so that it can be opened and used much like a file, rather than only existing between closely linked programs.
Appearing in the file system
The defining feature of a named pipe is that it has a name and appears in the file system, similar to a file. Because of this, different programs can refer to it by name to connect to it, whether to send data into it or read data out of it. This makes it possible for unrelated programs to communicate, as long as they know the name of the pipe to use.
How named pipes are used
Programs use a named pipe to exchange data: one writes into the pipe while another reads from it. Because the pipe is named and visible in the file system, the programs do not need a direct parent-child relationship to find each other, unlike with a simple unnamed pipe. This flexibility makes named pipes a handy tool for letting independent programs pass information between them.
Why named pipes are useful
Named pipes are useful because they provide a straightforward way for separate programs to communicate through a familiar, file-like interface. They let data flow between programs without those programs needing to share memory or be launched together. For many tasks that require passing a stream of data from one program to another, a named pipe offers a simple and convenient mechanism.
Why it matters
Named pipes are a classic form of communication between programs in many operating systems. Understanding what a named pipe is - a file-system object that lets separate programs exchange data - clarifies one of the ways software components work together. For anyone interested in how programs cooperate, it is a valuable concept to understand.
Related on Skillo
See also: What is a file descriptor? Explained, What is a process vs a program? Explained.
Sources
Published date reflects the original event date (2025-03-04). This article is original Skillo editorial written from the sources above; facts were verified in September 2026.
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