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Top Forums Shell Programming and Scripting How to subtract the adjacent lines from a single column? Post 302397872 by Fredrick on Tuesday 23rd of February 2010 07:49:00 AM
Old 02-23-2010
How to subtract the adjacent lines from a single column?

Hi All,

I have a file with only one column and i need to subtract the adjacent lines of the same column and print it in the same column.

For Example:
(Input)
HTML Code:
Col1

5
10
12
6
9
12
5
.
.
.
.
output should be like this:
HTML Code:
Col1

5
2
-6
3
3
-7
.
.
.
.
Can anyone help me in this regard?

Expecting your reply and Thanks in advance.

Warm regards
Fredrick.
 

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HTML::Template::Compiled::Classic(3pm)			User Contributed Perl Documentation		    HTML::Template::Compiled::Classic(3pm)

NAME
HTML::Template::Compiled::Classic - Provide the classic functionality like HTML::Template SYNOPSIS
use HTML::Template::Compiled::Classic compatible => 1; my $htcc = HTML::Template::Compiled::Classic->new( # usual parameters for HTML::Template::Compiled ); DESCRIPTION
This class provides features which can not be used together with features from HTML::Template::Compiled. These are: dots in TMPL_VARs If you want to use <TMPL_VAR NAME="some.var.with.dots"> you cannot use the dot-feature <TMPL_VAR NAME="some.hash.keys"> at the same time. Subref variables In HTML::Template, the following works: my $ht = HTML::Template->new( scalarref => "<TMPL_VAR foo>", ); $ht->param(foo => sub { return "bar" }); print $ht->output; # prints 'bar' This doesn't work in HTML::Template::Compiled (in the past it did, but as of HTC version 0.70 it won't any more, sorry). METHODS
compiler_class returns HTML::Template::Compiled::Compiler::Classic validate_var gets the var name (parsed out of "NAME="foo.bar"" and returns if the string is a valid var name perl v5.14.2 2012-05-26 HTML::Template::Compiled::Classic(3pm)
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