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The word One-liner also has two references in the index of the book The AWK Programming Language (the book is often referred to by the abbreviation TAPL). It explains the programming language AWK, which is part of the Unix operating system. The authors explain the birth of the one-liner paradigm with their daily work on early Unix machines:
xargs (short for "extended arguments") [1] is a command on Unix and most Unix-like operating systems used to build and execute commands from standard input.It converts input from standard input into arguments to a command.
awk – used for text file manipulation. sed – parses and transforms text; SQL – has only a few keywords and not all the constructs needed for a full programming language [a] – many database management systems extend SQL with additional constructs as a stored procedure language
On the other hand, the various shells plus tools like awk, sed, grep, and BASIC, Lisp, C and so forth contributed to the Perl programming language. [5] Other shells that may be available on a machine or for download and/or purchase include: Almquist shell (ash) Nushell (nu) PowerShell (msh) Z shell (zsh, a particularly common enhanced KornShell)
PowerShell; Hyphen. SQL*Plus; Underscore. AutoIt; Cobra; Visual Basic; Xojo; Ellipsis (three dots) MATLAB: The ellipsis need not end the line, but text following it is ignored. [5] It begins a comment that extends through (including) the first subsequent newline. Contrast this with a line comment which extends until the next newline. Comma ...
Equivalently, awk may be used to print the first five lines in a file: awk 'NR < 6' filename. However, neither sed nor awk were available in early versions of BSD, which were based on Version 6 Unix, and included head. [1]
This is a comparison of the features of the type systems and type checking of multiple programming languages.. Brief definitions A nominal type system means that the language decides whether types are compatible and/or equivalent based on explicit declarations and names.
String functions common to many languages are listed below, including the different names used. The below list of common functions aims to help programmers find the equivalent function in a language. Note, string concatenation and regular expressions are handled in separate pages. Statements in guillemets (« … ») are optional.