awk & division Post: 302541147

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1. Shell Programming and Scripting

Division by zero error message in AWK

How can I modify my awk code to get rid of the divion by zero error message? If I run the script without an input file, it should return error message "Input file missing" but not divison by zero. Code: #!/bin/nawk -f BEGIN { if (NR == 0) {print "Input file...

2. Shell Programming and Scripting

awk Division and modulus

I need to read the file divide 3 column with 2nd and run a modulus of 10 and check whether the remainder is zero or not if not print the entire line. cat filename | awk '{ if ($3 / $2 % 10 != 0) print $0}' Whats wrong with it ?

3. Shell Programming and Scripting

awk error message: division by zero attempted

Hi, I'm executing unixbench tool v4.1 on an embedded system and I'm getting these error messages: Execl Throughput 1 2 3awk: /unixbench/unixbench-4.1.0/pgms/loops.awk:38: (FILENAME=- FNR=4) fatal: division by zero attempted Pipe Throughput 1 2 3 4 5 6 7 8 9 10awk:...

4. UNIX for Advanced & Expert Users

awk: division by zero

I received error "awk: division by zero" while executing the following statement. SunOS 5.10 Generic_142900-15 sun4us sparc FJSV,GPUZC-M echo 8 | awk 'END {printf ("%d\n",NR/$1 + 0.5);}' file1.lst awk: division by zero Can someone provide solution? Thanks Please use code...

5. Shell Programming and Scripting

awk division error - 0

input 0 0 9820373 2069 0 0 11485482 awk '{print ($1/$3) / ($4/$7)}' input error Is there any way to fix this problem ?

6. Shell Programming and Scripting

Division problem -Awk

input one two three four 0 0 0 10424 0 102 0 15091 1 298 34 11111 0 10 0 1287 scripts awk 'NR>1{print ($1/$2) / ($3/$4)}' awk 'NR>1{ if ($1 ||$3 ||$2|| $4 == 0) print 0; else print (($1/$2)/($3/$4))}' error awk: division by zero input record number 1, file rm source line...

7. Shell Programming and Scripting

variables division with awk

hello i try to divide 2 variables in order to get a percentage--that's why i'm not interested in integer division--but nothing seems to work I think awk is suitable for this but i'm not quite sure how to use it.. any ideas? here's what I want to do: percentage = varA/varB thank you

8. Shell Programming and Scripting

awk - Division with condition

Hi Friends, I have an input file like this cat input chr1 100 200 1 2 chr1 120 130 na 1 chr1 140 160 1 na chr1 170 180 na na chr1 190 220 0 0 chr1 220 230 nd 1 chr2 330 400 1 nd chr2 410 450 nd nd chr3 500 700 1 1 I want to calculate the division of 4th and 5th columns. But, if...

9. Shell Programming and Scripting

awk Division By Zero Bypass

Hi Friends, I don't understand why "a" is always being printed as zero, when I execute the following command. awk '{if($6||$8||$10||$12==0)a=b=c=d=0;else (a=$5/$6);(b=$7/$8);(c=$9/$10);(d=$11/$12); {print...

10. Shell Programming and Scripting

awk - continue when encountered division error

Hello, How can I add a logic to awk to tell it to print 0 when encountering a division by zero attempted? Below is the code. Everything in the code works fine except the piece that I want to calculate read/write IO size. I take the kbr / rs and kbw / ws. There are times when the iostat data...

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html::treebuilder::libxml

HTML::TreeBuilder::LibXML(3pm)				User Contributed Perl Documentation			    HTML::TreeBuilder::LibXML(3pm)

NAME

       HTML::TreeBuilder::LibXML - HTML::TreeBuilder and XPath compatible interface with libxml

SYNOPSIS

	   use HTML::TreeBuilder::LibXML;

	   my $tree = HTML::TreeBuilder::LibXML->new;
	   $tree->parse($html);
	   $tree->eof;

	   # $tree and $node compatible to HTML::Element
	   my @nodes = $tree->findvalue($xpath);
	   for my $node (@nodes) {
	       print $node->tag;
	       my %attr = $node->all_external_attr;
	   }

	   HTML::TreeBuilder::LibXML->replace_original(); # replace HTML::TreeBuilder::XPath->new

DESCRIPTION

       HTML::TreeBuilder::XPath is libxml based compatible interface to HTML::TreeBuilder, which could be slow for a large document.

       HTML::TreeBuilder::LibXML is drop-in-replacement for HTML::TreeBuilder::XPath.

       This module doesn't implement all of HTML::TreeBuilder and HTML::Element APIs, but enough methods are defined so modules like Web::Scraper
       work.

BENCHMARK

       This is a benchmark result by tools/benchmark.pl

	       Web::Scraper: 0.26
	       HTML::TreeBuilder::XPath: 0.09
	       HTML::TreeBuilder::LibXML: 0.01_01

			    Rate  no_libxml use_libxml
	       no_libxml  5.45/s	 --	  -94%
	       use_libxml 94.3/s      1632%	    --

AUTHOR

       Tokuhiro Matsuno <tokuhirom  slkjfd gmail.com>

       Tatsuhiko Miyagawa <miyagawa@cpan.org>

       Masahiro Chiba

THANKS TO

       woremacx++ http://d.hatena.ne.jp/woremacx/20080202/1201927162

       id:dailyflower

SEE ALSO

       HTML::TreeBuilder, HTML::TreeBuilder::XPath

LICENSE

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

perl v5.14.2							    2012-04-02					    HTML::TreeBuilder::LibXML(3pm)