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Full Discussion: Unable to assign a value
Top Forums Shell Programming and Scripting Unable to assign a value Post 302870473 by Don Cragun on Sunday 3rd of November 2013 06:33:07 PM
Old 11-03-2013
OK. Let us take a step backwards here.

Using echo with no quotes on it arguments is hiding any newlines, tabs, and any sequences of two or more spaces that may have been produced by the output of the db2 command. Then, since you converted all of the output from db2 into a single line with the echo, sed -n 8p will obviously not find a number to print on the eighth line of its single line of input.

But, even before we get to that problem, you also show that the output from db2 has spaces surrounding the colons in its output. So, even if the eighth line of output was something like:
Code:
Parameter Value : 21874778112

The output when printing the 2nd field of that colon separated value line would have a leading space (which you did not show us in any message in this thread until now). That leading space will keep the assignment to dbsize from working the way you want it to work.

Making several wild assumptions, the following change shown in red might work:
Code:
dbsize=`db2 "call get_dbsize_info(?,?,?,-1)" | sed -n '8p' | awk -F ': *' '{print $2}'`

or, preferably:
Code:
dbsize="$(db2 "call get_dbsize_info(?,?,?,-1)" | sed -n 8p | awk -F ': *' '{print $2}')"

or:
Code:
dbsize="$(db2 "call get_dbsize_info(?,?,?,-1)" | sed -n '8s/.*: *//p')"

If these don't work, please show us the exact output from the command:
Code:
db2 "call get_dbsize_info(?,?,?,-1)"

so we can actually see what is on the eighth line of its output.
 

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LEARN ABOUT CENTOS

locale::codes::langfam

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

NAME

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

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. 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 = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_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.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

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::LangFam(3)
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