AwkChannelWiki: Search for: "FS"

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awk-glossary
concise glossary of the essential awk  -  Last edited 2014-08-04 02:26 UTC\\ Contents: . . . refs:           . . . | clip }}} . . .
5K - last updated 2014-08-04 03:23 UTC by y0tta

AwkFeatureComparison
This page lists which awk implementations support which features. Additions and corrections are very . . . |=using empty FS to split characters|no (undefined)|yes, but not . . . in POSIX mode|yes|yes|no|no|unknown|no|no|yes| |=FS can match the empty string|unknown?|no|yes|no|no|no|unknown|no|no|yes| . . . POSIX mode|yes|no|no|no|unknown|no|yes (no backrefs)|no| |=strftime()|no|yes, but not in POSIX mode|yes|no|no|no|unknown|no|yes|no| . . . '/\<\w\W\w\>/' # a,b}}}| |=using empty FS to split characters|{{{echo abc|awk -F '' '{print . . .
4K - last updated 2015-04-27 13:23 UTC by pgas

AwkGuide
** Work in Progress ** {{{ import from Mark Hobley's wiki }}} <toc> ---- == Overview * [[Overview]] . . . * [[field]]s * [[field reference]] operator * [[FS|field separator]] * [[file]] handling * [[floating . . . numbers * [[for loop]]s * [[foreach]] loops * [[FS]] * [[function]]s * [[gawkism]]s * [[getline]] * . . .
4K - last updated 2011-08-14 15:57 UTC by markhobley

AwkOnWindowsHowto
AwkOnWindowsHowto\\ rough cut - needs edit {{{ 3) awk command line switches/usage from a win32 cmd.exe . . . D:\!\utl > awk95.exe usage: awk95.exe [-F fs] [-v var=value] [-f progfile | 'prog'] [file ...] . . . filename -f - read the program from stdin -F fs set field separator FS to value of fs (nojoy -F . . . "" to set FS to null; use -v FS="") -v var=value -v a=1 to be . . .
3K - last updated 2010-10-24 07:44 UTC by g0pher

AwkTips
<toc> ---- == Be idiomatic! In this paragraph, we give some hints on how to write more idiomatic . . . appear anywhere else) are easily parsed using {{{FS=','}}}. There can be spaces around fields, and we . . . , field3 , field4 }}} Exploiting the fact that FS can be a regex, we could try something like {{{FS='^ . . . not; * for some reason, assigning that regex to FS produces unexpected results if fields have embedded . . . this case, it's probably better to parse using FS=',' and remove leading and trailing spaces from . . .
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** . . . such as the [[RS|record separator]] and [[FS|field separator]], but they can contain other commands: . . . the title # Set the field separator to a colon FS = ":" } }}} == Behaviour and effects Begin blocks . . .
3K - last updated 2013-04-11 14:25 UTC by 92.40.253.171.threembb.co.uk

CAAN-or-caan
**caan:     the comprehensive awk archive network**\\     -or-\\ . . . | clip \040 is space \046 & . . .
4K - last updated 2014-05-29 02:01 UTC by g0ph3r

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/ . . . were created by split()? <include "SizeOfSplit"> [[http://awk.freeshell.org/?action=edit;id=SizeOfSplit| . . . Edit this answer]] ---- == Why does { FS=":"; print $1 } not split the first record? <include . . .
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/ . . . were created by split()? <include "SizeOfSplitJapanese"> [[http://awk.freeshell.org/?action=edit;id=SizeOfSplitJapanese| . . .
4K - last updated 2008-11-24 09:01 UTC by pgas

ConvertHexToFloatingPoint
This code uses [[gawkism|gawk specific features]], such as the [[http://www.gnu.org/manual/gawk/html_node/Strtonum-Function.html][strtonum]] . . . = and(x,0x7F800000) # shift them down, then offset exponent /= 0x800000 exponent -= 127 # bits 0-22 . . .
3K - last updated 2010-06-23 19:49 UTC by john b

FileAndBitJoinClone
== Problem Description This was difficult to hash out. Eventually the task was described as, "for each . . . DdiGAT+Ae8eAl+9kRUqoJMP2rzFsQA1IOmKcJqOCxeBX7P7tH3+5fvn7L19+ zVfxV6/1/lf9z/mvv8RaL19Eimnrpr19KSLD7MunfPkPvP72/7/85v8+ny9/ . . . gU14Ku37htPTxLnbb1L9Os+M5ulnlfSL63S0TkfrTGed6aynk3U6Wee5Wqne . . . 1NfSk52e7PSnnZ7soKtxWZv4/zNY9IeaLKWuFpT1cSCU9bkhGRtPY6mxBRfr . . . xTrGFKm+CJgfKQui/fSznzi5Zl+z9eor9/XpAq2GtqrD7yxjrfppA1ojWi/Q +tbatfwmIw5EfiP+tAZtbK1fXj7LFwJuyJ22CnFSMd65brGuq7TSHGdmmeUz . . .
7K - last updated 2009-03-08 16:26 UTC by waldner

FIXES
[[FIXES]]        revised:   . . . the same changes for field-splitting if FS is "".\\ \\ added nextfile, as in gawk: causes immediate . . . version and exit (Jan 17, 2006)\\ a change to FS is now noticed immediately for subsequent splits.\\ . . . "" is nojoy setting FS to null\\     use . . . -v FS="" instead.\\ \\ the new escapes \a \v \xhh are . . .
6K - last updated 2014-01-15 23:17 UTC by g0ph3r

FS
= Field Separator = The [[special variable]] FS is a field separator that is used to determine how [[awk]] . . . echo "Rhubarb Custard Bananas" | awk 'BEGIN { FS = " " } { for (l=1;l<=NF;l++) print l ":" $l . . . echo "Rhubarb##Custard##Bananas" | awk 'BEGIN { FS = "#" } { for (l=1;l<=NF;l++) print l ":" $l . . . echo "Rhubarb Custard Bananas" | awk 'BEGIN { FS = "[ ]" } { for (l=1;l<=NF;l++) print l ":" $l . . . echo ' Rhubarb Custard Bananas '| awk 'BEGIN { FS = " " } { print $2 }' # This gives Custard echo . . .
5K - last updated 2013-02-19 21:45 UTC by markhobley

input
The [[awk]] utility can take its input from [[standard input]] or from [[file]]s. If no input files are . . . the record number within the current file | [[FS]] | A control variable that specifies the input . . .
2K - last updated 2011-05-19 22:40 UTC by markhobley

LevenshteinEditDistance
The [http://en.wikipedia.org/wiki/Levenshtein_distance|Levenshtein edit distance] calculation is useful . . . an edit distance between them {{{ awk BEGIN {OFS = "\t"} {words[NR] = $0} END { max = 0 for (i = . . .
6K - last updated 2010-04-16 10:19 UTC by pgas

ListOfPastebins
This is a list of PasteBin URLs that have been used in #awk. There should be a much shorter list of recommended . . . of the same general service * http://pastebin.bafserv.com - looks like a clone of http://pastebin.com . . .
2K - last updated 2015-09-08 09:08 UTC by pgas

LshalOutputParser
=== Problem Specification 10:50 <Thanatermesis> i want to obtain the model of the disk, for example, . . . === Code {{{ BEGIN { skip = 1 inBlock = 0 FS = " = " } function die(msg) { printf "ERROR on line . . . 0) { type = substr($2, RSTART+1, RLENGTH-2) # offsets to remove parentheses val = trim(substr($2, 1, . . .
3K - last updated 2008-06-27 16:22 UTC by gnomon

oawk
oawk is "old awk", it is the default /usr/bin/awk on Solaris and should not be used. You can also find . . . 1 awk: illegal statement near line 1 }}} ==== FS cannot be an RE: {{{sh $ echo "faobo" | /usr/xpg4/bin/awk . . . '{ print $1,$2,$3 }' FS="[ab]" f o o $ echo "faobo" | /usr/bin/awk '{ print . . . $1,$2,$3 }' FS="[ab]" faobo }}} ==== Cannot set $0: {{{sh $ /usr/xpg4/bin/awk . . .
5K - last updated 2012-01-24 08:29 UTC by pgas

PrintfDynamicWidth
With modern awks, you can just do it like you would in C (though the justification is less clear; C doesn't . . . maxlen=length(arr[i]) printfstring="%-" maxlen "s %s\n"; for (i in arr) printf(printfstring,arr[i],i) . . .
1K - last updated 2008-11-24 08:26 UTC by pgas

PrintfDynamicWidthJapanese
With modern awks, you can just do it like you would in C (though the justification is less clear; C doesn't . . . maxlen=length(arr[i]) printfstring="%-" maxlen "s %s\n"; for (i in arr) printf(printfstring,arr[i],i) . . .
1K - last updated 2008-11-24 08:36 UTC by pgas

RangeOfFields
Printing a range of fields - all fields but the first, for examples, or fields 3 through 8 - is a surprisingly . . . fiddly little problem. ==== No field offsets are stored Although awk performs field splitting, . . . not that is accessible to user code) of the offsets into the line where the splitting actually took . . . however cause awk to recompute the line adding OFS between the field, including the now empty fields . . . in the case of the above example with a default FS and OFS, the spaces will be squeezed and 2 space . . .
10K - last updated 2015-09-08 09:52 UTC by pgas

SizeOfSplit
How many elements were created by split()? When I do a split on a field, e.g., {{{ awk split($1,x,"string") . . .
1K - last updated 2008-11-18 12:35 UTC by pgas

SizeOfSplitJapanese
split() で作られたエレメント (配列) の数はいくつでしょうか? 例えば、フィールドを分割した場合、 {{{ awk split($1,x,"string") }}} エレメント x の数はどうやって知ることができるでしょうか? . . .
1K - last updated 2008-11-22 13:11 UTC by 218.231.238.51.eo.eaccess.ne.jp

special variable
Some [[variable]] names have a special meaning to the awk interpreter. == List of special variables == . . . the number of records read from current file | [[FS]] | A control variable that specifies the input . . . the output format of numerical values | [[OFS]] | A control variable that specifies the output . . .
2K - last updated 2011-06-25 05:46 UTC by pgas

SplitIntoChars
In portable POSIX awk, the only way to do this is to use substr to pull out each character, one by one. . . . of the Bell Labs awk all allow you to set FS = "" and use "" as the third argument of split. . . .
1K - last updated 2008-11-24 08:20 UTC by pgas

SplitIntoCharsJapanese
In portable POSIX awk, the only way to do this is to use substr to pull out each character, one by one. . . . of the Bell Labs awk all allow you to set FS = "" and use "" as the third argument of split. . . .
1K - last updated 2008-11-24 08:35 UTC by pgas

Transpose
To transpose a N rows x M columns file into a M rows x N column file, one approach is to read the whole . . . fields; adapt to your real data): {{{ awk BEGIN{FS=","} {for(i=1;i<=NF;i++)a[NR,i]=$i} END{ for(i=1;i<=NF;i++){ . . . for(j=1;j<=NR;j++){ line=line sep a[j,i] sep=FS } print line line=sep="" } } }}} NR is our N, and . . .
1K - last updated 2011-03-20 06:53 UTC by ppp089210038204.dsl.hol.gr

variable
A '''variable''' is a symbolic name associated with a [[value]]. A variable acts as a container and the . . . by ","), it prints them separated by the OFS variable. So, presuming OFS is " ", the following . . .
3K - last updated 2012-04-22 11:42 UTC by unregistered

WartAndWishList
Awk is a wonderful language! That said, there are a few annoying bits... == The Good * well-documented . . . the results of its field parsing and hides the offsets (but look at the optional fourth argument of . . .
7K - last updated 2009-04-13 18:39 UTC by goedel

WhenAreTheFieldsSet
Basically, you should set FS before it may be called upon to split $0 into fields. Once awk encounters . . . and don't re-parse just because you changed FS. To get the desired behavior, you must set FS _before_ . . . reading in a line. e.g., {{{ awk BEGIN { FS=":" } { print $1 } }}} e.g., {{{ awk -F: '{ print . . . $1 }' }}} if you run code like this {{{ awk { FS=":"; print $1 } }}} on this data: {{{ first:second:third . . . perhaps more surprisingly, code like {{{ awk { FS=":"; } { print $1; } }}} will also behave in the . . .
1K - last updated 2008-12-15 12:46 UTC by pgas

XMLScraping
You cannot easily parse xml with awk. But there are several tricks to scrap an xml file: <toc> . . . the line will then look like {{{ field1 FS field2 FS field3 }}} where the first FS is the opening . . . possibility, use the attribute name as the FS, then you are in the same kind of situation as the . . . to extract the content of the tag: {{{ something FS value" something else FS value" something else }}} . . .
2K - last updated 2011-11-23 15:06 UTC by pgas

y0tta
**y0tta:**     http://awk.freeshell.org/y0tta     revised: 2014-05-30 . . . | clip \040 is space \046 & . . .
3K - last updated 2014-05-30 05:06 UTC by g0ph3r

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