"sed search and replace after xml tag"

Post #302974797 by RudiC on Friday 3rd of June 2016 11:10:18 AM

Do you want to use a counter (which, BTW, you did not initialize and thus is the empty string for the first loop) or the source device's number?

Code:
for i in eno1 eno2 eno3 eno4
    do    echo "Updating macvtap device names for $i"
          sed "/source dev='$i'/a <target dev='New${i#${i%?}}'/>"  XML_file
    done

This User Gave Thanks to RudiC For This Post:
 
Test Your Knowledge in Computers #574
Difficulty: Medium
The process of allocating and deallocating memory is generally referred to as memory swapping.
True or False?

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MKDoc::XML::Tokenizer(3pm)				User Contributed Perl Documentation				MKDoc::XML::Tokenizer(3pm)

NAME
MKDoc::XML::Tokenizer - Tokenize XML the REX way SYNOPSIS
my $tokens = MKDoc::XML::Tokenizer->process_data ($some_xml); foreach my $token (@{$tokens}) { print "'" . $token->as_string() . "' is text " if (defined $token->text()); print "'" . $token->as_string() . "' is a self closing tag " if (defined $token->tag_self_close()); print "'" . $token->as_string() . "' is an opening tag " if (defined $token->tag_open()); print "'" . $token->as_string() . "' is a closing tag " if (defined $token->tag_close()); print "'" . $token->as_string() . "' is a processing instruction " if (defined $token->pi()); print "'" . $token->as_string() . "' is a declaration " if (defined $token->declaration()); print "'" . $token->as_string() . "' is a comment " if (defined $token->comment()); print "'" . $token->as_string() . "' is a tag " if (defined $token->tag()); print "'" . $token->as_string() . "' is a pseudo-tag (NOT text and NOT tag) " if (defined $token->pseudotag()); print "'" . $token->as_string() . "' is a leaf token (NOT opening tag) " if (defined $token->leaf()); } SUMMARY
MKDoc::XML::Tokenizer is a module which uses Robert D. Cameron REX technique to parse XML (ignore the carriage returns): [^<]+|<(?:!(?:--(?:[^-]*-(?:[^-][^-]*-)*->?)?|[CDATA[(?:[^]]*](?:[^]]+]) *]+(?:[^]>][^]]*](?:[^]]+])*]+)*>)?|DOCTYPE(?:[ ]+(?:[A-Za-z_:]|[^ x00-x7F])(?:[A-Za-z0-9_:.-]|[^x00-x7F])*(?:[ ]+(?:(?:[A-Za-z_:]|[^ x00-x7F])(?:[A-Za-z0-9_:.-]|[^x00-x7F])*|"[^"]*"|'[^']*'))*(?:[ ]+) ?(?:[(?:<(?:!(?:--[^-]*-(?:[^-][^-]*-)*->|[^-](?:[^]"'><]+|"[^"]*"|'[^']*' )*>)|?(?:[A-Za-z_:]|[^x00-x7F])(?:[A-Za-z0-9_:.-]|[^x00-x7F])*(?:?>|[ n ][^?]*?+(?:[^>?][^?]*?+)*>))|%(?:[A-Za-z_:]|[^x00-x7F])(?:[A-Za-z0 -9_:.-]|[^x00-x7F])*;|[ ]+)*](?:[ ]+)?)?>?)?)?|?(?:(?:[A-Za-z _:]|[^x00-x7F])(?:[A-Za-z0-9_:.-]|[^x00-x7F])*(?:?>|[ ][^?]*?+(? :[^>?][^?]*?+)*>)?)?|/(?:(?:[A-Za-z_:]|[^x00-x7F])(?:[A-Za-z0-9_:.-]|[^x 00-x7F])*(?:[ ]+)?>?)?|(?:(?:[A-Za-z_:]|[^x00-x7F])(?:[A-Za-z0-9_:. -]|[^x00-x7F])*(?:[ ]+(?:[A-Za-z_:]|[^x00-x7F])(?:[A-Za-z0-9_:.-]| [^x00-x7F])*(?:[ ]+)?=(?:[ ]+)?(?:"[^<"]*"|'[^<']*'))*(?:[ t ]+)?/?>?)?) That's right. One big regex, and it works rather well. DISCLAIMER
This module does low level XML manipulation. It will somehow parse even broken XML and try to do something with it. Do not use it unless you know what you're doing. API
my $tokens = MKDoc::XML::Tokenizer->process_data ($some_xml); Splits $some_xml into a list of MKDoc::XML::Token objects and returns an array reference to the list of tokens. my $tokens = MKDoc::XML::Tokenizer->process_file ('/some/file.xml'); Same as MKDoc::XML::Tokenizer->process_data ($some_xml), except that it reads $some_xml from '/some/file.xml'. NOTES
MKDoc::XML::Tokenizer works with MKDoc::XML::Token, which can be used when building a full tree is not necessary. If you need to build a tree, look at MKDoc::XML::TreeBuilder. AUTHOR
Copyright 2003 - MKDoc Holdings Ltd. Author: Jean-Michel Hiver This module is free software and is distributed under the same license as Perl itself. Use it at your own risk. SEE ALSO
MKDoc::XML::Token MKDoc::XML::TreeBuilder perl v5.10.1 2004-10-06 MKDoc::XML::Tokenizer(3pm)

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