AwkChannelWiki: Search for: "script"

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AA-awk-one-page
http://awk.freeshell.org/AA-awk-one-page\\ 2013-09-19 20:23:02 http://awk.freeshell.org/g0ph3r\\ attempt . . . awk - based on gawk 3.1.8 - 2013-08-13\\ description: http://wiki.alpinelinux.org/wiki/Awk\\ home: . . .
2K - last updated 2013-09-20 06:55 UTC by g0ph3r

awk 2012 ISO
**[[awk_2012_ISO]]**        revised:   . . . [[http://www.princeton.edu/~hos/mike/transcripts/weinberger.htm| princeton.edu]]\\ youtube:   . . .
4K - last updated 2012-09-16 03:39 UTC by g0ph3r

AwkDc
This is an awk implementation of the [http://www.gnu.org/software/bc/manual/dc-1.05/html_mono/dc.html|dc] . . . weenies have [http://sed.sourceforge.net/grabbag/scripts/dc_overview.htm|all the fun], now can we?). . . .
12K - last updated 2008-07-17 14:47 UTC by gnomon

AwkGuide
** Work in Progress ** {{{ import from Mark Hobley's wiki }}} <toc> ---- == Overview * [[Overview]] . . . loops * [[whitespace]] == Conversion of scripts to suit different awk versions * [[Converting . . . gawk scripts to traditional awk]] * [[gawkism]]s . . .
4K - last updated 2011-08-14 15:57 UTC by markhobley

AwkTips
<toc> ---- == Be idiomatic! In this paragraph, we give some hints on how to write more idiomatic . . . want to replace each operation code with its description. We have another file that maps operation . . . codes to human readable descriptions, like this: {{{ abc withdrawal def payment . . . opcode, is populated with the human readable descriptions. Then, it is used during the reading of . . . pipelines It's not uncommon to see lines in scripts that look like this: {{{ somecommand | head . . .
31K - last updated 2009-03-24 16:54 UTC by waldner

BEGIN
== Begin Blocks The [[awk]] programming language allows us to use **begin blocks** and **end blocks** . . . If multiple begin blocks are defined within a script, they are executed in order that they are defined . . . within the awk script. If the script contains only BEGIN rules and . . . no other rules, then the script exits without reading the input, after the BEGIN . . . versions of awk may read the input even if the script has just a BEGIN rules. == Programming Convention . . .
3K - last updated 2013-04-11 14:25 UTC by 92.40.253.171.threembb.co.uk

case conversion
The [[awk]] extraction and reporting language provides the toupper and tolower functions for converting . . . tolower == === Usage === tolower(STRING) === Description === The tolower function returns a lowercase . . . toupper == === Usage === toupper(STRING) === Description === The toupper function returns a lowercase . . .
2K - last updated 2011-06-25 05:10 UTC by pgas

CAWKLib
=CAWKLib CAWKlib is a library of functions for for awk intended to be used with preprocessors/wrappers . . . empty *file_hasterm() -- returns 1 if the file descriptor supplied has a terminal device associated . . .
5K - last updated 2015-01-29 10:14 UTC by 108-243-116-77.lightspeed.cicril.sbcglobal.net

Columnate
This script columnates the input file, so that columns line up like in the GNU column(1) command. Its . . .
1K - last updated 2009-02-28 21:32 UTC by h-67-101-152-180.nycmny83.dynamic.covad.net

command line parameter
The [[awk]] extraction and reporting language uses traditional conventions for accessing command line . . . By convention ARGV[0] contains the name of the [[script]] being utilized. However, this behaviour is . . . awk interpreter, rather than the name of the [[script]] or [[pathname]] components may be included. . . .
1K - last updated 2011-06-25 05:49 UTC by pgas

comp.lang.awk FAQ
This material of this faq originates from the comp.lang.awk FAQ that you can find there: * http://www.faqs.org/faqs/computer-lang/awk/faq/ . . . access shell or environment variables in an awk script? === Shells <include "Shells"> [[http://awk.freeshell.org/?action=edit;id=Shells| . . .
8K - last updated 2009-03-04 12:42 UTC by pgas

comp.lang.awk FAQJapanese
This material of this faq originates from the comp.lang.awk FAQ that you can find there: * http://www.faqs.org/faqs/computer-lang/awk/faq/ . . . access shell or environment variables in an awk script? === Shells <include "ShellsJapanese"> . . .
4K - last updated 2008-11-24 09:01 UTC by pgas

comparative operator
The comparative operators are used to determine equality or inequality or otherwise make comparisons . . . as a comparison within an expression: {{{ # This script contains a bug BEGIN { n=2 IF (n=3) PRINT "n . . .
3K - last updated 2013-02-24 17:38 UTC by markhobley

ContextGrep
The following snippets print matching lines with surrounding context lines, like GNU grep's **grep -A . . . Here's a way of doing it (this time, the script expects the variables **Pattern** and **Before** . . . === The following combines the two previous scripts. This script expects the variables **Pattern** . . .
3K - last updated 2011-07-01 08:32 UTC by pgas

Converting gawk scripts to traditional awk
== _Scripts that contain gawkisms may not operate correctly on some systems_ Scripts that contain awk . . .
1K - last updated 2009-03-18 13:04 UTC by Mark Hobley

EnvVarGeneral
**Answer 1:** On Unix, use "alternate quoting", e.g. {{{ awk -F: '$1 ~ /'"$USER"'/ {print $5}' /etc/passwd . . . Otherwise, you wouldn't end up a single, long script argument, because Unix shells break arguments . . . var }' hello world }}} See next answer for a description of -v: **Answer 2:** RTFM to see if and how . . . /etc/passwd }}} Always remember for your /bin/sh scripts that it's easy to put things into the environment . . . portable, but doesn't work with awk "-f" script files. In that case, it's better to use a shell . . .
3K - last updated 2011-07-05 09:31 UTC by pgas

exponent
==Warning! The use of [[gawkism]]s will prevent the script from running correctly on systems that use . . .
2K - last updated 2012-03-20 07:33 UTC by g0pher

field
In [[awk]] all [[input]] is separated into [[record]]s and each [[record]] is further divided into fields. . . . using special variables == Within the [[awk]] script, each field can be referenced by using [[dollarint]] . . .
1K - last updated 2011-06-25 05:31 UTC by pgas

FileAndBitJoinClone
== Problem Description This was difficult to hash out. Eventually the task was described as, "for each . . .
7K - last updated 2009-03-08 16:26 UTC by waldner

gawkism
Gawkisms are non portable syntax components that do not work with some awk implementations. The use of . . . [[awk]] gawkisms will prevent the script from running correctly on systems that use a . . . ---- [[Removing gawkisms from buggy build scripts]] [[Converting gawk scripts to traditional . . .
2K - last updated 2011-05-19 22:29 UTC by markhobley

getline
The *getline* command can obtain input from any number of files and does not require a command line parameter . . . [[ERRNO]] should becomes set and the [[awk]] script should [[abort]] with a [[fatal]] error. However, . . .
1K - last updated 2011-05-02 20:14 UTC by markhobley

GoogleSearch
<form action="http://www.google.com/cse" id="cse-search-box"> <div> <input type="hidden" . . . /> </div> </form> <script type="text/javascript" src="http://www.google.com/coop/cse/brand?form=cse-search-box&lang=en"></script> . . .
1K - last updated 2008-06-13 20:44 UTC by pgas

hash
== Prefixing comments == The hash symbol can be used as a prefix for inserting comments within an [[awk]] . . . script: {{{ # This whole line is a comment and is ignored . . .
1K - last updated 2010-11-08 22:37 UTC by markhobley

hashbang
== A script can be treated as an executable file by using a hashbang == It is possible for an awk script . . . a hashbang line as the first line of the script. === The hashbang needs a switch === Because . . . with the appropriate command line for the script. The hashbang line should read as follows: {{{ . . .
1K - last updated 2010-11-28 19:04 UTC by markhobley

here document
The awk extraction and reporting language does not provide any markup facility for embedding here documents . . . within an awk script. The awk utility is really a helper tool often . . . the Unix shell. The Unix shell in which awk scripts are usually embedded does support the use of . . .
1K - last updated 2013-02-25 19:28 UTC by markhobley

HomePage
This wiki is maintained by regulars from the **#awk** channel on **[[https://libera.chat/|irc.libera.chat]]** . . . file.txt (unfortunately this is as specific a description of these two files as was ever provided; . . .
5K - last updated 2023-06-26 04:15 UTC by HappMacDonald

include
The [[awk]] extraction and reporting language does not support the use of include files. However, it . . . source files will be visible from other scripts called from the same command line: {{{ # one.awk . . .
2K - last updated 2013-03-30 10:38 UTC by markhobley

Inicio
Este wiki es mantenido por los usuarios del cenal **#awk** en **[[http://www.freenode.net|irc.freenode.net]]**. . . . file.txt (unfortunately this is as specific a description of these two files as was ever provided; . . .
7K - last updated 2009-02-12 23:31 UTC by fcr

input
The [[awk]] utility can take its input from [[standard input]] or from [[file]]s. If no input files are . . . to the [[rule]]s defined within the [[awk]] script. By default, each line of input is treated as . . . are related to input: | *Variable* | *Description* | [[FNR]] | An informative variable that . . .
2K - last updated 2011-05-19 22:40 UTC by markhobley

Invoking an awk program
=== Throwaway one-liners It is often useful to type a simple program at the command line for use within . . . {print "Hello World!"}' }}} === Running an awk script An [[awk]] script can be started at the command . . . line, by passing the script name as a parameter to the [[awk]] interpreter: . . . Using a shebang (hashbang) As with other Unix scripts, an [[awk]] script can be started using a [[hashbang]]. . . .
1K - last updated 2008-12-31 11:34 UTC by pgas

jawk
===jawk=== An awk clone targeting the JVM. Can be found [http://jawk.sourceforge.net/|on its SourceForge . . . to JVM bytecode] to make awk scripts, in principle, usable as components in a broader . . .
1K - last updated 2011-03-30 03:30 UTC by 87.83.232.221.broad.wh.hb.dynamic.163data.com.cn

keyword
A keyword is a reserved word that has a special meaning to the [[awk]] interpreter. A keyword cannot . . . used as an [[identifier]] name within an [[awk]] script. The following keywords have a special meaning . . .
1K - last updated 2010-10-25 11:38 UTC by markhobley

length
== Usage == === length ([ STRING ]) === The **length** function returns the number of characters within . . . should always be used in current [[awk]] scripts. . . .
1K - last updated 2011-06-25 05:11 UTC by pgas

libmawk
libmawk is a fork of [[mawk]], designed for embedding in C programs. Compare and contrast with [[awka]]. . . . main features: * load and run multiple awk scripts independently, in parallel * scripts do not . . . process can fill from time to time * running scripts in (mostly) non-blocking manner - that is, . . . the script will not block if the process can not provide . . . smooth integration * call C functions from awk scripts * resolve existing awk variables from C - read . . .
2K - last updated 2012-01-16 09:07 UTC by lewellyn

LinksPage
<toc> ---- == websites dedicated to awk == * [[http://awk.info/|awk.info]] news and articles about . . . in Computerworld; 2008-05-27 09:43:32) * transcript of and [[http://www.princeton.edu/~hos/mike/transcripts/weinberger.htm|Interview . . . Arnold Robbins]] == wikis == * http://www.awk-scripting.de/cgi-bin/wiki.cgi/00-WikiIndex * http://awkiawki.bogosoft.com/ . . . * [http://rosettacode.org/wiki/Category:AWK AWK Scripting Solutions on Rosetta Code] == xml == * [[http://home.vrweb.de/~juergen.kahrs/gawk/XML/| . . .
4K - last updated 2015-02-24 14:45 UTC by pgas

literal characters
== Special characters cannot be directly included in a literal string == Special characters, such as . . . and may cause [[misbehaviour]] of the [[script]]. These [[character]]s can be inserted as literal . . .
2K - last updated 2010-11-28 19:14 UTC by markhobley

logical operator
In [[awk]], *logical operators* are used to perform [[boolean]] operations, and a return a value of [true] . . . of the [operand]s. | *Operator* | *Symbol* | *Description* | [[and]] | [[doubleampersand &&]] . . .
3K - last updated 2009-01-02 11:13 UTC by pgas

NF
= Number of Fields = The [[special variable]] NF holds the number of [[field]]s in the [[current record]]. . . . in the [[current record]]. The following [[script]] outputs the first and last [[field]] from . . .
1K - last updated 2011-05-28 15:14 UTC by markhobley

Overview
= Overview of awk = == The primarily purpose of awk is to processing textual data to produce formatted . . . reports. == Components of an awk program == A [[script]] in [[awk]] may contain the following components: . . . and compares with each [[pattern]] in the [[script]]. If a [[pattern]] matches the [[input line]], . . . order in which they are defined in the [[awk]] script. When [[awk]] has completed its comparisons . . . be needed." == Syntax == Each line of an [[awk]] script has the following [[syntax]]: pattern { action . . .
4K - last updated 2011-05-23 23:09 UTC by markhobley

qse
Not a standalone awk, but an interesting library embedding an awk interpreter, from [[https://groups.google.com/group/comp.lang.awk/browse_thread/thread/b02c0d75e49eab75/54fc2c6316d657bc?lnk=gst&q=c%2B%2B+embed#54fc2c6316d657bc| . . . independent of each other. * running a single script with different I/O streams independently. * . . . * open a new interpreter * parse in a source script * open a new runtime context * execute pattern-action . . . ("cannot open awk"); /* parse the hello world script from a string */ psin.type = QSE_AWK_PARSESTD_CP; . . . <= -1) FAIL (awk); // parse the source script string MyAwk::SourceString in(QSE_T("BEGIN { . . .
4K - last updated 2011-10-27 06:25 UTC by pgas

RangeOfFields
Printing a range of fields - all fields but the first, for examples, or fields 3 through 8 - is a surprisingly . . . the format pretty much the same. The following script doesn't actually remove any fields from the . . .
10K - last updated 2015-09-08 09:52 UTC by pgas

read only variable
=== _User defined variables cannot be marked as readonly_ The [[awk]] extraction and reporting language . . . be explicitly modified from within the [[awk]] script. . . .
1K - last updated 2011-06-01 21:29 UTC by markhobley

redirection
The awk scripting language provides support for redirection via the greaterthan, doublebeak and pipe . . .
2K - last updated 2011-06-25 05:12 UTC by pgas

Removing gawkisms from buggy build scripts
The use of awk gawkisms will prevent the script from running correctly on systems that use a traditional . . . [[gawkism]]s in their build and installation scripts. This causes the installation process to fail . . .
1K - last updated 2010-10-10 20:34 UTC by markhobley

return
The [[builtin]] '''return''' [[command]], can be used to exit from a [[function]] within the [[awk]] . . . script, returning control to the [[calling section]]. . . .
2K - last updated 2011-05-03 17:29 UTC by markhobley

rule
Scripts in [[awk]] may contain one or more rules. == Rules consist of patterns and actions == Each rule . . . within an [[awk]] script consists of a [[pattern]] and an associated . . .
1K - last updated 2011-05-11 15:07 UTC by markhobley

SedFAQ
<toc> ---- == I have a line like "abdcgfjeuPATTERNfjfhghj", I want to get the PATTERN part, why . . . the MAP file first, transforming it into a sed script that does what we want. This script is fed to . . .
34K - last updated 2010-02-14 17:56 UTC by waldner

special variable
Some [[variable]] names have a special meaning to the awk interpreter. == List of special variables == . . . within [[awk]]: | '''Variable''' | Description | [[ARGC]] | An informative variable that . . . | A control variable that specifies the subscript separator for multidimensional arrays . . .
2K - last updated 2011-06-25 05:46 UTC by pgas

substr
=== Removing the first and last characters from a string === The following [[script]] demonstrates how . . .
1K - last updated 2011-06-25 05:10 UTC by pgas

variable-español
AWK no es el shell, y tampoco es Perl. Antes que nada, las variables en AWK se referencian utilizando . . . allá de si «nombre» es o no una variable en el script de AWK. Para formar nuevos strings desde strings . . .
2K - last updated 2009-01-03 04:02 UTC by fcr

variable
A '''variable''' is a symbolic name associated with a [[value]]. A variable acts as a container and the . . . manipulation to take place from within the [[script]]. == Variables are dynamic == In [[awk]] variables . . . of whether name is a variable in the AWK script. New strings can be constructed from string . . .
3K - last updated 2012-04-22 11:42 UTC by unregistered

y0tta
**y0tta:**     http://awk.freeshell.org/y0tta     revised: 2014-05-30 . . . pl/1   awk   basic   jscript\\     ( minor:   . . .
3K - last updated 2014-05-30 05:06 UTC by g0ph3r

53 pages found.