02-06-2006
Here it is
If I get the jist of your issue right.
You have files having a common with date and time stamps affixed in the name. And you have to grab the oldest file first and rename to the common name with a column being appended to the lines in the file.
If I am right you have files for eg.
test_file.20060206.dtd
test_file.20060207.dtd
If that is the case.
If your files are in the current working directory then.
export comm_file_name=test_file.dtd
export curr_file=`l -ltr test_file.* | awk 'NR == 1 {printf("%s",$9);}'`
sed 's/^\(.*\)$/&\|N/' $curr_file > file_temp
mv file_temp $comm_file_name
If the files are not in your current working directory then
dir_name=/var/opt/test/
export comm_file_name=$dir_name/test_file.dtd
export curr_file=`l -ltr $dir_name/test_file.* | awk 'NR == 1 {printf("%s",$9);}'`
sed 's/^\(.*\)$/&\|N/' $curr_file > file_temp
mv file_temp $comm_file_name
I hope it works.
Rajeeb
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LEARN ABOUT OSX
xml::libxml::dtd
XML::LibXML::Dtd(3) User Contributed Perl Documentation XML::LibXML::Dtd(3)
NAME
XML::LibXML::Dtd - XML::LibXML DTD Handling
SYNOPSIS
use XML::LibXML;
$dtd = XML::LibXML::Dtd->new($public_id, $system_id);
$dtd = XML::LibXML::Dtd->parse_string($dtd_str);
$publicId = $dtd->getName();
$publicId = $dtd->publicId();
$systemId = $dtd->systemId();
DESCRIPTION
This class holds a DTD. You may parse a DTD from either a string, or from an external SYSTEM identifier.
No support is available as yet for parsing from a filehandle.
XML::LibXML::Dtd is a sub-class of XML::LibXML::Node, so all the methods available to nodes (particularly toString()) are available to Dtd
objects.
METHODS
new
$dtd = XML::LibXML::Dtd->new($public_id, $system_id);
Parse a DTD from the system identifier, and return a DTD object that you can pass to $doc->is_valid() or $doc->validate().
my $dtd = XML::LibXML::Dtd->new(
"SOME // Public / ID / 1.0",
"test.dtd"
);
my $doc = XML::LibXML->new->parse_file("test.xml");
$doc->validate($dtd);
parse_string
$dtd = XML::LibXML::Dtd->parse_string($dtd_str);
The same as new() above, except you can parse a DTD from a string. Note that parsing from string may fail if the DTD contains external
parametric-entity references with relative URLs.
getName
$publicId = $dtd->getName();
Returns the name of DTD; i.e., the name immediately following the DOCTYPE keyword.
publicId
$publicId = $dtd->publicId();
Returns the public identifier of the external subset.
systemId
$systemId = $dtd->systemId();
Returns the system identifier of the external subset.
AUTHORS
Matt Sergeant, Christian Glahn, Petr Pajas
VERSION
2.0008
COPYRIGHT
2001-2007, AxKit.com Ltd.
2002-2006, Christian Glahn.
2006-2009, Petr Pajas.
perl v5.16.2 2012-10-22 XML::LibXML::Dtd(3)