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Top Forums Shell Programming and Scripting How to extract xml attribute values using awk inline.? Post 302974855 by kchinnam on Sunday 5th of June 2016 12:05:15 AM
Old 06-05-2016
Aia, thanks for trying,, I knew a wicked one liner like you gave could do this..
Don, please check performance stats,, I am bash/awk lover,, we have work to do..

Code:
 
grep '<factories.*baseQueueName' resources.xml | perl -nle '@r=/(?:jndiN|baseQueueN|n)ame="([^"]+)/g and print join ",",@r[1,2,0]'

Code:
# 153 XML tag lines scanned from one resources.xml file. time <command> gives these stats
real    0m0.007s, user    0m0.004s, sys     0m0.002s  -- Perl solution OMG
real    0m0.028s, user    0m0.025s, sys     0m0.002s  -- Don's awk solution
real    0m0.928s, user    0m0.458s, sys     0m0.409s  -- My general public :-) solution. Why sys taking so long here! not fair.

is there a way to combine first regex '<factories.*baseQueueName' into second one as well?

I wonder if any basic shell commands like sed/awk/grep can match what you are able to do with perl.. I would love to see simplified awk solution to beat perl.

Last edited by kchinnam; 06-05-2016 at 01:10 AM.. Reason: more details
 

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tt_pattern_create(library call) 										   tt_pattern_create(library call)

NAME
tt_pattern_create -- request a new pattern object SYNOPSIS
#include <Tt/tt_c.h> Tt_pattern tt_pattern_create(void) DESCRIPTION
The tt_pattern_create function requests a new pattern object. After receiving the pattern object, the application fills in the message pattern fields to indicate what type of messages the process wants to receive and then registers the pattern with the ToolTalk service. The application can supply multiple values for each attribute added to a pattern (although some attributes are set and can only have one value). The pattern attribute matches a message attribute if any of the values in the pattern match the value in the message. If no value is specified for an attribute, the ToolTalk service assumes that any value will match. RETURN VALUE
Upon successful completion, the tt_pattern_create function returns the opaque handle for a message pattern. The application can use this handle in future calls to identify the pattern object. The application can use tt_ptr_error(3) to extract one of the following Tt_status values from the returned handle: TT_OK The operation completed successfully. TT_ERR_NOMP The ttsession(1) process is not running and the ToolTalk service cannot restart it. APPLICATION USAGE
The application should use tt_free(3) to free any data stored in the address returned by the ToolTalk API. SEE ALSO
Tt/tt_c.h - Tttt_c(5), tt_pattern_register(3), tt_ptr_error(3), tt_free(3). tt_pattern_create(library call)
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