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Top Forums Shell Programming and Scripting Perl : how to modify a file without generate a temporary file Post 302442245 by summer_cherry on Tuesday 3rd of August 2010 09:07:26 PM
Old 08-03-2010
Perl : how to modify a file without generate a temporary file

Hi All,

I have a file like below, how can i insert one line after line 1 without using a temporary file in perl?

Code:
line 1
line 2
line 3

expected result
Code:
line 1
new line <---insert here
line 2
line 3

 

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HTML::FormatText(3)					User Contributed Perl Documentation				       HTML::FormatText(3)

NAME
HTML::FormatText - Format HTML as plaintext SYNOPSIS
require HTML::TreeBuilder; $tree = HTML::TreeBuilder->new->parse_file("test.html"); require HTML::FormatText; $formatter = HTML::FormatText->new(leftmargin => 0, rightmargin => 50); print $formatter->format($tree); DESCRIPTION
The HTML::FormatText is a formatter that outputs plain latin1 text. All character attributes (bold/italic/underline) are ignored. Formatting of HTML tables and forms is not implemented. You might specify the following parameters when constructing the formatter: leftmargin (alias lm) The column of the left margin. The default is 3. rightmargin (alias rm) The column of the right margin. The default is 72. SEE ALSO
HTML::Formatter COPYRIGHT
Copyright (c) 1995-2002 Gisle Aas, and 2002- Sean M. Burke. All rights reserved. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. AUTHOR
Current maintainer: Sean M. Burke <sburke@cpan.org> Original author: Gisle Aas <gisle@aas.no> perl v5.12.1 2004-06-02 HTML::FormatText(3)
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