Remove the first character from the fourth column only if the column has four characters

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Top Forums Shell Programming and Scripting Remove the first character from the fourth column only if the column has four characters
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Old 08-14-2013
Another option:
sed -i.bak 's/./ /17' file

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

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
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 <> Original author: Gisle Aas <> perl v5.12.1 2004-06-02 HTML::FormatText(3)