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Full Discussion: Execution Problems with awk
Top Forums Shell Programming and Scripting Execution Problems with awk Post 303011111 by echo manolis on Saturday 13th of January 2018 07:30:07 AM
Old 01-13-2018
Execution Problems with awk
Ubuntu, Bash 4.3.48

Hi,

I have this input file:
Code:
a1:b2:c30:g4:h12:j7

and I want this output file:
Code:
a1=g4:b2=h12:c30=j7

I can do it this with this code:
Code:
awk -F':' '{print $1"="$4":"$2"="$5":"$3"="$6"}' INPUT > OUTPUT

In this case I have 6 columns, I calculate manually the half number of columns (6/2=3) and I wrotte $1 + $4 ... $3 + $6

Now I want to update my code with one that do everything in automatic, considering that the number of columns of the input file is unknown.

Some additional codes...

1) awk -F':' '{print NF; exit}' INPUT > COUNT_NF # with this I know the number of columns

2) I need a code to do this: NF/2= hNF (half of NF)

3) I think that for the main code I have to create a loop... like this

$1 "=" $(hNF+1) this to repeat for hNF times (i=hNF)

example...
Code:
awk -F':' -v hNF=$hNF ' { for (i=1; i<=hNF; i++) print $1"="$(hNF+1)":" }' INPUT > OUTPUT

Could you help me please!
Thanks
Last edited by Scrutinizer; 01-13-2018 at 11:08 AM.. Reason: Additional code and icode tags
 

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LEARN ABOUT CENTOS

locale::codes::langext

Locale::Codes::LangExt(3)				User Contributed Perl Documentation				 Locale::Codes::LangExt(3)

NAME

       Locale::Codes::LangExt - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangExt;

	  $lext = code2langext('acm');		       # $lext gets 'Mesopotamian Arabic'
	  $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langext_codes();
	  @names   = all_langext_names();

DESCRIPTION

       The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, 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 extensions. 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:

	  $lext = code2langext('acm','alpha');
	  $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic.

	   This is the default code set.

ROUTINES

       code2langext ( CODE [,CODESET] )
       langext2code ( NAME [,CODESET] )
       langext_code2code ( CODE ,CODESET ,CODESET2 )
       all_langext_codes ( [CODESET] )
       all_langext_names ( [CODESET] )
       Locale::Codes::LangExt::rename_langext  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangExt::add_langext  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangExt::delete_langext  ( CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangExt::delete_langext_alias  ( NAME )
       Locale::Codes::LangExt::rename_langext_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::delete_langext_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 v5.16.3							    2013-02-27						 Locale::Codes::LangExt(3)
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