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Full Discussion: Extract timestamp from first record in xml file and it checks if not it will replace first record
Top Forums Shell Programming and Scripting Extract timestamp from first record in xml file and it checks if not it will replace first record Post 302924024 by Don Cragun on Wednesday 5th of November 2014 10:40:38 PM
Old 11-05-2014
Try something like:
Code:
awk -F '</?date>' '
#{printf("%s \"%s\"\n", substr($0, 1, 2), $2)}
/^<emp>/ {
	ed = $2
	cd = substr($2, 7, 2) substr($2, 1, 2) substr($2, 4, 2) substr($2, 10)
	print
	next
}
/^<Join>/ {
	if(cd > (substr($2, 7, 2) substr($2, 1, 2) substr($2, 4, 2) substr($2, 10)))
		$0 = $1 "<date>" ed "</date>" $3
}
1' test.xml

If you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.
 

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LEARN ABOUT CENTOS

tapset::string

tapset::string(3stap)													     tapset::string(3stap)

NAME

       tapset::string - systemtap string tapset

DESCRIPTION

       strlen Returns the length of a string

	      See function::strlen(3stap)
	       for details.

       substr Returns a substring

	      See function::substr(3stap)
	       for details.

       stringat
	      Returns the char at a given position in the string

	      See function::stringat(3stap)
	       for details.

       isinstr
	      Returns whether a string is a substring of another string

	      See function::isinstr(3stap)
	       for details.

       text_str
	      Escape any non-printable chars in a string

	      See function::text_str(3stap)
	       for details.

       text_strn
	      Escape any non-printable chars in a string

	      See function::text_strn(3stap)
	       for details.

       - strtol
	      Convert a string to a long

	      See function::-strtol(3stap)
	       for details.

       isdigit
	      Checks for a digit

	      See function::isdigit(3stap)
	       for details.

SEE ALSO

	 function::strlen(3stap),    function::substr(3stap),	function::stringat(3stap),  function::isinstr(3stap),  function::text_str(3stap),
       function::text_strn(3stap),  function::-(3stap),  function::strtol(3stap),  function::isdigit(3stap),  stap(1), stapprobes(3stap)

IBM
									---						     tapset::string(3stap)
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