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Full Discussion: Passing dynamic variable within another variable.
Top Forums Shell Programming and Scripting Passing dynamic variable within another variable. Post 302881580 by Cyril Jos on Monday 30th of December 2013 10:45:34 AM
Old 12-30-2013
Passing dynamic variable within another variable.
I have a small program which needs to pass variable dynamically to form the name of a second variable whose value wil be passed on to a third variable.

***************** Program Start ******************

Code:
LOC1=/loc1
PAT1IN=/loc2
PAT2IN=/loc3
if [ -f $LOC1/* ]; then
for fpattern in `cat $script/filepattern.txt`
do 
for ffilename in `find $LOC1/ -type f`
do
filename=`echo $ffilename | cut -d "/" -f 3`
file=`echo $filename | cut -d "_" -f 1`
case "$file" in
$fpattern)
INLOC=${${file}IN}
echo $INLOC
echo $filename
;;
esac
done
done 
else
echo "Exiting Job as no files present."
exit
fi

***************** Program End ******************

List of files present in the /loc1 are as below
Code:
/loc1/PAT1_test.txt
/loc1/PAT2_test1.txt

content of filepattern.txt are as below

Code:
PAT1
PAT2

when i execute the program, i keep getting this error

Code:
INLOC=${${file}IN}: bad substitution

Please let me know if i am doing something wrong. or is there an alternate way to achieve this without having to use to much variables.

expected output is:
Code:
/loc2
PAT1_test.txt
/loc3
PAT2_test1.txt

Last edited by bartus11; 12-30-2013 at 11:50 AM.. Reason: Please use code tags
 

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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

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

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

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

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

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

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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