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Full Discussion: Extracting the tag name from an xml file
Top Forums Shell Programming and Scripting Extracting the tag name from an xml file Post 302925517 by ongoto on Monday 17th of November 2014 04:09:33 PM
Old 11-17-2014
grep is a good idea.

Try this on some real data...
Code:
#!/bin/bash
#
# tags.sh

if [ ! $1 ]; then 
    echo "usage: `basename $0` <filename.xml> [output file]"
    exit 1
fi

tag_list=( $(grep -o -e "^\s*<\w.\w*>$" $1 | tr -d ' <>' | sed s/^n://g | sort -u ))
printf "\n%s%s\n" "tag_name=\"" "${tag_list[*]}\""

# Append to outfile
if [ $2 ]; then
    touch $2
    printf "%s:\n%s%s\n\n" "$1" "tag_name=\"" "${tag_list[*]}\"" >> $2
fi

### eof #

output
--------
$ tags.sh filename.xml
tag_name="tag_name1 tag_name2"
Last edited by ongoto; 11-17-2014 at 07:28 PM.. Reason: monkeying with regex
 

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LEARN ABOUT DEBIAN

feed::find

Feed::Find(3pm) 					User Contributed Perl Documentation					   Feed::Find(3pm)

NAME

       Feed::Find - Syndication feed auto-discovery

SYNOPSIS

	   use Feed::Find;
	   my @feeds = Feed::Find->find('http://example.com/');

DESCRIPTION

       Feed::Find implements feed auto-discovery for finding syndication feeds, given a URI. It (currently) passes all of the auto-discovery tests
       at http://diveintomark.org/tests/client/autodiscovery/.

       Feed::Find will discover the following feed formats:

       o   RSS 0.91

       o   RSS 1.0

       o   RSS 2.0

       o   Atom

USAGE

   Feed::Find->find($uri)
       Given a URI $uri, use a variety of techniques to find the feeds associated with that page. If $uri itself points to a feed (i.e., if the
       Content-Type of the response is a recognized feed type), returns $uri.

       Returns a list of feed URIs.

       The following techniques are used:

       1. <link> tag auto-discovery
	   If the page contains any <link> tags in the <head> section, these tags are examined for recognized feed content types. The following
	   content types are treated as feeds: application/x.atom+xml, application/atom+xml, application/xml, text/xml, application/rss+xml, and
	   application/rdf+xml.

       2. Scanning <a> tags
	   If the page does not contain any known <link> tags, the page is then scanned for <a> tags for links to URIs with certain file
	   extensions. The following extensions are treated as feeds: .rss, .xml, and .rdf.

	   Note that this technique is employed only if the first technique returns no results.

   Feed::Find->find_in_html($html [, $base_uri ])
       Given a reference to a string $html containing an HTML page, uses the same techniques as described above in find to find the feeds
       associated with that page.

       If you know the URI of the page, you should provide it in $base_uri, so that relative links can be properly made absolute. Feed::Find will
       attempt to determine the correct base URI, but unless that URI is specified in the HTML itself (in a "<meta>" tag), you'll need to supply
       it yourself.

       Returns a list of feed URIs.

LICENSE

       Feed::Find is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR &; COPYRIGHT
       Except where otherwise noted, Feed::Find is Copyright 2004 Benjamin Trott, ben+cpan@stupidfool.org. All rights reserved.

perl v5.10.1							    2011-01-28							   Feed::Find(3pm)
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