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Full Discussion: awk script not producing output
Top Forums Shell Programming and Scripting awk script not producing output Post 302971120 by Don Cragun on Friday 15th of April 2016 08:12:47 PM
Old 04-15-2016
Note that your script:
Code:
#!/bin/bash
awk '
{
        if(!($1 in c))
        {
                colors[$1] = $1
        }
        TotalValue[$1] += $2
        occurrences[$1]++
}

END {   printf("%-11s %-12s %12s\n", "   Color   "," Occurrences ", " Mean Value ")
        printf("%-11s %-12s %12s\n", "===========", "============", "============")
        for(i in c)
                printf("%-11s %-12d %12d\n", colors[i], occurrences[i], TotalValue[i]/occurrences[i])
}' $1

doesn't really need the colors[] array. And, as RudiC noted, %d won't print a decimal point and fractional values that you said you want in your output. To get 1 digit after the decimal point in your averages (as in the output you said you wanted) you might want to try this slight modification to your original script:
Code:
#!/bin/bash
awk '
{
        TotalValue[$1] += $2
        occurrences[$1]++
}

END {   printf("%-11s %s %s\n", "   Color", "Occurrences", "Mean Value")
        printf("%s %s %s\n", "===========", "===========", "==========")
        for(i in TotalValue)
                printf("%-11s %11d %10.1f\n", i, occurrences[i], TotalValue[i]/occurrences[i])
}' "$1"

which, when invoked with one operand naming a file containing the sample data you provided in post #1 produces the output:
Code:
   Color    Occurrences Mean Value
=========== =========== ==========
Blue                  2        4.5
Red                   2        5.5
Yellow                1        4.0

This User Gave Thanks to Don Cragun For This Post:
Zooma
 

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LEARN ABOUT MOJAVE

locale::script

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

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. 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:

	  $script = code2script('phnx','alpha');
	  $script = code2script('phnx',LOCALE_SCRIPT_ALPHA);

       The codesets currently supported are:

       alpha, LOCALE_SCRIPT_ALPHA
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.  It also includes additions to this set
	   included in the IANA language registry.

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

	   This is the default code set.

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

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::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

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

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

       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) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2013 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							    2013-11-04						       Locale::Script(3pm)
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