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Full Discussion: Using awk to place decimal points at proper position
Top Forums Shell Programming and Scripting Using awk to place decimal points at proper position Post 302967505 by Prathmesh on Wednesday 24th of February 2016 09:35:25 AM
Old 02-24-2016
Using awk to place decimal points at proper position
Hi,

I have one input file which is delimited by pipe. I want to put decimal points in this input file at particular position in particular column and also get the negative sign (if any) at start of that column.

Code:
$ cat Input_file.txt
11|10102693|1|20151202|10263204|20151127|N|0001
11|20100142-|2|20151202|21411783-|20151127|3|0005

And, There is one comma separated file which mentions "Column number","length of the column" and "position of decimal point".

Code:
$ cat decimal.csv
2,8,3
5,8,4

Expected output is as follows:
Code:
11|101.02693|1|20151202|1026.3204|20151127|N|0001
11|-201.00142|2|20151202|-2141.1783|20151127|3|0005

I have tried below awk code but, I am not getting expected output:
Code:
$ awk 'FNR == NR {A[NR]=$1;B[NR]=$2;C[NR]=$3;CNT=NR;next}{for(i=1;i<=CNT;i++) $A[i]=substr($A[i],$B[i]+1,1) substr($A[i],1,$C[i]) "." substr($A[i],$C[i]+1,$B[i]-$C[i])} {print $0}' FS="," decimal.csv FS="|" OFS="|" Input_file.txt
11|01.|1|20151202|010263204.|20151127|N|0001
11|120.100|2|20151202|721411783-.|20151127|3|0005

Can someone please help me to figure out what I am doing wrong here and correct me.
 

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LEARN ABOUT MOJAVE

locale::codes::langvar

Locale::Codes::LangVar(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangVar(3pm)

NAME

       Locale::Codes::LangVar - standard codes for language variation identification

SYNOPSIS

	  use Locale::Codes::LangVar;

	  $lvar = code2langvar('acm');		       # $lvar gets 'Mesopotamian Arabic'
	  $code = langvar2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langvar_codes();
	  @names   = all_langvar_names();

DESCRIPTION

       The "Locale::Codes::LangVar" module provides access to standard codes used for identifying language variations, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language variations. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lvar = code2langvar('en','alpha-2');
	  $lvar = code2langvar('en',LOCALE_CODE_ALPHA_2);

       The codesets currently supported are:

       alpha
	   This is the set of alphanumeric codes from the IANA language registry, such as 'arevela' for Eastern Armenian.

	   This code set is identified with the symbol "LOCALE_LANGVAR_ALPHA".

	   This is the default code set.

ROUTINES

       code2langvar ( CODE [,CODESET] )
       langvar2code ( NAME [,CODESET] )
       langvar_code2code ( CODE ,CODESET ,CODESET2 )
       all_langvar_codes ( [CODESET] )
       all_langvar_names ( [CODESET] )
       Locale::Codes::LangVar::rename_langvar  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangVar::add_langvar  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangVar::delete_langvar  ( CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangVar::delete_langvar_alias  ( NAME )
       Locale::Codes::LangVar::rename_langvar_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::delete_langvar_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2014-01-06					       Locale::Codes::LangVar(3pm)
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