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Full Discussion: HELP with Unix scripts in summing columns in a file
Homework and Emergencies Homework & Coursework Questions HELP with Unix scripts in summing columns in a file Post 302689491 by Corona688 on Tuesday 21st of August 2012 12:43:24 PM
Old 08-21-2012
Quote:
Originally Posted by ramneim
oh yeah, got it, forgot about that, so i'll just put an if statement in the begin section, to check if there's a 2nd or 3rd file.
The getline loop won't run if the file doesn't exist. An if might not be necessary.
Quote:
but let's say, there's a 2nd and 3rd file, and then their data got loaded before doing the processing/summation, so how do i exclude/skip those lines so that they won't be included in summation?
Put them in the array, too. If you somehow arrange for B["12345"]=1 to be set before the real data gets checked, you can check if B["12345"] is true and skip it if it is.
Quote:
like what should i put in the codes to exclude those from being summed?
Quote:
Originally Posted by Corona688
When reading lines of data, check then if the array for that entry is blank like if(SKIP[$col]) { next } where 'next' will cause that line to be skipped.
This User Gave Thanks to Corona688 For This Post:
ramneim
 

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LEARN ABOUT CENTOS

ppi::token::quotelike

PPI::Token::QuoteLike(3)				User Contributed Perl Documentation				  PPI::Token::QuoteLike(3)

NAME

       PPI::Token::QuoteLike - Quote-like operator abstract base class

INHERITANCE

	 PPI::Token::QuoteLike
	 isa PPI::Token
	     isa PPI::Element

DESCRIPTION

       The "PPI::Token::QuoteLike" class is never instantiated, and simply provides a common abstract base class for the five quote-like operator
       classes. In PPI, a "quote-like" is the set of quote-like things that exclude the string quotes and regular expressions.

       The subclasses of "PPI::Token::QuoteLike" are:

       qw{} - PPI::Token::QuoteLike::Words
       `` - PPI::Token::QuoteLike::Backtick
       qx{} - PPI::Token::QuoteLike::Command
       qr// - PPI::Token::QuoteLike::Regexp
       <FOO> - PPI::Token::QuoteLike::Readline

       The names are hopefully obvious enough not to have to explain what each class is. See their pages for more details.

       You may note that the backtick and command quote-like are treated separately, even though they do the same thing. This is intentional, as
       the inherit from and are processed by two different parts of the PPI's quote engine.

SUPPORT

       See the support section in the main module.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2001 - 2011 Adam Kennedy.

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

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.16.3							    2011-02-26						  PPI::Token::QuoteLike(3)
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