07-26-2012
Help needed with multiplying two values of two columns in a file
Hi, I am trying to multiply column#1 with column#2 using a shell script. How can I make a for-loop script using 1st column as "i" and the second column as "j" from the following file? Please feel free to share any alternative ways to multiplying column#1 with column#2.
HTML Code:
.06 5.0000
.49 7.8750
.18 5.0000
.17 1.0000
.64 6.1250
.01 0.1250
.48 4.81250
.01 0.2500
.77 19.5000
Thanks in advance
---------- Post updated at 08:20 PM ---------- Previous update was at 08:16 PM ----------
This is what I tried..... but did not work
HTML Code:
root@vna1(/)# for x in `awk '{print $1}' /tmp/temp6`
> do
> for j in `awk '{print $2}' /tmp/temp6`
> do
> echo "scale=3; $x * $y" | bc
> done
> done
syntax error on line 1 stdin
syntax error on line 1 stdin
syntax error on line 1 stdin
syntax error on line 1 stdin
syntax error on line 1 stdin
syntax error on line 1 stdin
syntax error on line 1 stdin
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LEARN ABOUT DEBIAN
html::html5::parser::error
HTML::HTML5::Parser::Error(3pm) User Contributed Perl Documentation HTML::HTML5::Parser::Error(3pm)
NAME
HTML::HTML5::Parser::Error - an error that occured during parsing
DESCRIPTION
Note that HTML::HTML5::Parser is not a validation tool, and there are many classes of error that it does not care about, so will not raise.
The "error_handler" and "errors" methods of "HTML::HTML5::Parser" generate "HTML::HTML5::Parser::Error" objects.
"HTML::HTML5::Parser::Error" overloads stringification, so can be printed, matched against regular expressions, etc.
Constructor
"new(level=>$level, type=>$type, token=>$token, ...)"
Constructs a new "HTML::HTML5::Parser::Error" object.
Methods
"level"
Returns the level of error. ('MUST', 'SHOULD', 'WARN', 'INFO' or undef.)
"layer"
Returns the parsing layer involved, often undef. e.g. 'encode'.
"type"
Returns the type of error as a string.
"tag_name"
Returns the tag name (if any).
"source_line"
($line, $col) = $error->source_line();
$line = $error->source_line;
In scalar context, "source_line" returns the line number of the source code that triggered the error.
In list context, returns a line/column pair. (Tab characters count as one column, not eight.)
"to_string"
Returns a friendly error string.
SEE ALSO
HTML::HTML5::Parser.
AUTHOR
Toby Inkster, <tobyink@cpan.org>
COPYRIGHT AND LICENSE
Copyright (C) 2011-2012 by Toby Inkster
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.1 or,
at your option, any later version of Perl 5 you may have available.
perl v5.14.2 2012-03-19 HTML::HTML5::Parser::Error(3pm)