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Full Discussion: String parsing help across multiple UNIX platforms
Top Forums Shell Programming and Scripting String parsing help across multiple UNIX platforms Post 302998941 by Don Cragun on Friday 9th of June 2017 11:22:25 PM
Old 06-10-2017
I don't understand. Are you saying that you want to search for a bunch of patterns and return the last element in the XML file that matched any one of those patterns? So, if we look at the last couple of entries in your sample:
Code:
                  <parameter name="Cabinet Temp"  unit="0.1 C">                                                                                                                  
                     <value size="1"  starttime="06-08-2017 13:46:29.751">360</value>                                                                                                                                                                                                                                                                                                                              
                  </parameter>                                                                                                                                                                                                                                                                    
                  <parameter name="Electronics PID Control Value"  unit="-">                                                                                    
                     <value size="1"  starttime="06-08-2017 13:46:42.593">1667</value> 
                  </parameter>

and you decide to search for Cabinet Temp and Electronics PID Control Value, you want the output to be:
Code:
{"Electronics PID Control Value" 0 }

Note that the 0 comes from multiplying 1667 times the string "-" and the space at the end is because there is no second value after a space in unit="-" like there was in your earlier example with unit="0.1 C".

If we had a clear definition of what you're trying to do, we might be able to help you get there. But, with your current description, I'm not able to guess at the output you hope to achieve.
 

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LEARN ABOUT SUSE

xmlstarlet

XMLSTARLET(1)							 xmlstarlet Manual						     XMLSTARLET(1)

NAME

       xmlstarlet - command line XML/XSLT toolkit

SYNOPSIS

       xmlstarlet [<options>] [<command>] [<cmd-options>]

INTRODUCTION

       XMLStarlet is a set of command line utilities (tools) which can be used to transform, query, validate, and edit XML documents and files us-
       ing simple set of shell commands in similar way it is done for plain text files using UNIX grep, sed, awk, diff, patch, join, etc commands.
       This  set of command line utilities can be used by those who deal with many XML documents on UNIX shell command prompt as well as for auto-
       mated XML processing with shell scripts.

OPTIONS

       --version
	      Display the version of xmlstarlet.

       --help Display help.

COMMANDS

       Type: xml <command> --help <ENTER> for command help

       Available commands include:

       ed (or edit)
	      Edit/update XML document(s).

       sel (or select)
	      Select data or query XML document(s) (XPATH, etc).

       tr (or transform)
	      Transform XML documents(s) using XSLT.

       val (or validate)
	      Validate XML document(s) (well-formed/DTD/XSD/RelaxNG).

       fo (or format)
	      Format XML document(s).

       el (or elements)
	      Display element structure of XML document.

       c14n (or canonic)
	      XML canonicalization.

       ls (or list)
	      List directory as XML.

       esc (or escape)
	      Escape special XML characters.

       unesc (or unescape)
	      Unescape special XML characters.

       pyx (or xmln)
	      Convert XML into PYX format (based on ESIS - ISO 8879).

       p2x (or depyx)
	      Convert PYX into XML.

REFERENCES

       XMLStarlet is a command line  toolkit  to  query/edit/check/transform  XML  documents  (for  more  information  see  http://xmlstar.source-
       forge.net/).

AUTHOR

       Mikhail Grushinskiy.

																     XMLSTARLET(1)
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