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Top Forums UNIX for Beginners Questions & Answers How to remove unused html codes from the file using UNIX? Post 303037665 by Neo on Friday 9th of August 2019 05:59:54 AM
Old 08-09-2019
There are specific PHP commands which will transform HTML files and strip out certain HTML entities, for example:

Code:
<?php
echo strip_tags("Hello <b>world!</b>");
?>

See also:

Code:
strip_tags ( string $str [, string $allowable_tags ] ) : string

Reference:

PHP: strip_tags - Manual

However, you might also find joy with

Code:
htmlspecialchars ( string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $encoding = ini_get("default_charset") [, bool $double_encode = TRUE ]]] ) : string

... depending on your exact requirements:

PHP: htmlspecialchars - Manual

Or even:

PHP: htmlentities - Manual

Please keep in mind that "web-centric" programming languages like PHP and others have a rich set of commands built to transform and process HTML files; and most web developers, including me, use these tools to make the transformation(s) you are considering.

PHP runs "just fine" from the "UNIX" or "Linux" command line in most modern operating systems.

But, as Don mentioned, without knowing the details of your OS, we are just shooting in the dark.
 

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php-config(1)                                                   Scripting Language                                                   php-config(1)

NAME
php-config - get information about PHP configuration and compile options SYNOPSIS
php-config [options] DESCRIPTION
php-config is a simple shell script for obtaining information about installed PHP configuration. OPTIONS
--prefix Directory prefix where PHP is installed, e.g. /usr/local --includes List of -I options with all include files --ldflags LD Flags which PHP was compiled with --libs Extra libraries which PHP was compiled with --man-dir The directory prefix where the manpages is installed --extension-dir Directory where extensions are searched by default --include-dir Directory prefix where header files are installed by default --php-binary Full path to php CLI or CGI binary --php-sapis Show all SAPI modules installed on the Debian system --configure-options Configure options to recreate configuration of current PHP installation --version PHP version --vernum PHP version as integer SEE ALSO
php(1) VERSION INFORMATION
This manpage describes php, version 7.0.33-6+ubuntu18.04.1+deb.sury.org+3. COPYRIGHT
Copyright (C) 1997-2017 The PHP Group This source file is subject to version 3.01 of the PHP license, that is bundled with this package in the file LICENSE, and is available through the world-wide-web at the following url: http://www.php.net/license/3_01.txt If you did not receive a copy of the PHP license and are unable to obtain it through the world-wide-web, please send a note to license@php.net so we can mail you a copy immediately. The PHP Group 2017 php-config(1)
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