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Full Discussion: Converting rows to column
Top Forums Shell Programming and Scripting Converting rows to column Post 302634399 by rbatte1 on Thursday 3rd of May 2012 09:44:36 AM
Old 05-03-2012
You statement of
Code:
echo "$a, \c" >>sample.txt

...would actually generate a comma&space separated file. I presume you mean:-
Code:
echo "$a,\c" >>sample.txt

followed by a plain echo at the end of the process.


Anyway, this indirect phrase I used.

If you are using ksh, then the arrays are limited to being one dimensional, i.e. you can only specify one ordinate. If you could specify two, then this would be easier. The logic would work that if you had arrays A and gave them ordinates x & y in a reference that identified a single value as A[x,y] then we could load the array by using a pair of loops like this (not runnable code)
Code:
x=1
y=1

until [ $x -ge 15 ]
do
   until [ $y -gt 15 ]
   do
      {read value into A[$x,$y]}
      {increment y}
   done
   {increment x}
done

Then you could write the data out again looping the other way around, such as:-
Code:
x=1
y=1

until [ $y -ge 15 ]
do
   until [ $x -gt 15 ]
   do
      {write value from A[$x,$y]}
      {increment x}
   done
   {increment y}
done


If your shell does not support two diminsional arrays (such as ksh need to check ksh93) we may have to be more inventive. The indirect variable would be a way of trying to use a variable as a variable name, so you make one of the ordinates part of the variable, so if the 2D array is A you would actually define a set of 1D arrays, A1, A2, A3, A4, ...... for as many values of x as you would have. You could then refer to $A3[5] as being array cell 3,5 as it were. The trick is how to get the array name as a variable. It could get messy.

It depends how one would write something like:-
Code:
echo "${A$x[$y]}"

.... which I'm not sure how to code up.

I'm not sure if this helps, but it may bring further suggestions - and I may learn something too!



Robin
Liverpool/Blackburn
UK
 

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LEARN ABOUT OSX

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) 2011-2012 Sullivan Beck

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

perl v5.16.2							    2012-10-11					       Locale::Codes::LangVar(3pm)
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