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In computing, redirection is a form of interprocess communication, and is a function common to most command-line interpreters, including the various Unix shells that can redirect standard streams to user-specified locations. The concept of redirection is quite old, dating back to the earliest operating systems (OS).
Unix shells use dup2 for input/output redirection. Along with pipe(), it is a tool on which Unix pipes rely. The following example uses pipe() and dup() in order to connect two separate processes (program1 and program2) using Unix pipes:
The Linux Network Administrator's Guide is a book on setting up and running Unix and Linux networks. [1] The first and second editions are freely available in electronic form under the GFDL. It was originally produced by Olaf Kirch and others as part of the Linux Documentation Project with help from O'Reilly.
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
The book addresses the Unix philosophy of small cooperating tools with standardized inputs and outputs. Kernighan and Pike gives a brief description of the Unix design and the Unix philosophy: [1] Even though the UNIX system introduces a number of innovative programs and techniques, no single program or idea makes it work well.
rc (for "run commands") is the command line interpreter for Version 10 Unix and Plan 9 from Bell Labs operating systems. It resembles the Bourne shell , but its syntax is somewhat simpler. It was created by Tom Duff , who is better known for an unusual C programming language construct (" Duff's device ").
The Unix System (ISBN 0-201-13791-7, ISBN 978-0201137910) is a book by Stephen R. Bourne. Published in 1982, it was the first widely available general introduction to the Unix operating system . It included some historical material on Unix, as well as material on using the system, editing, the software tools concept, C programming using the ...
Linux From Scratch (LFS) is a type of a Linux installation and the name of a book written by Gerard Beekmans, and as of May 2021, mainly maintained by Bruce Dubbs. The book gives readers instructions on how to build a Linux system from source. The book is available freely from the Linux From Scratch site. [1]