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cat is a standard Unix utility that reads files sequentially, writing them to standard output. The name is derived from its function to (con) cat enate files (from Latin catenare , "to chain"). [ 1 ] [ 2 ] It has been ported to a number of operating systems.
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 GNU Core Utilities or coreutils is a package of GNU software containing implementations for many of the basic tools, such as cat, ls, and rm, which are used on Unix-like operating systems. In September 2002, the GNU coreutils were created by merging the earlier packages textutils , shellutils , and fileutils , along with some other ...
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
Pike opines in his design of unix paper: "Even the name cat is typical of UNIX program names: it is short, pronounceable, but not conventional English for the job it does." concatenate is the conventional name. catenate is a happy accident here. So more circumstantial evidence.
The original version of netcat was a Unix program. The last version (1.10) was released in March 1996. [4]There are several implementations on POSIX systems, including rewrites from scratch like GNU netcat [5] or OpenBSD netcat, [6] the latter of which supports IPv6 and TLS.
Cat, categories of twisted pair network cabling; CAT (phototypesetter) (Computer Assisted Typesetter), a 1972 phototypesetter cat (Unix), a Unix utility that concatenates and lists files
The authors contrast Unix tools such as cat with larger program suites used by other systems. [5] The design of cat is typical of most UNIX programs: it implements one simple but general function that can be used in many different applications (including many not envisioned by the original author). Other commands are used for other functions.