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Full Discussion: Print 4th line back from regexp
Top Forums Shell Programming and Scripting Print 4th line back from regexp Post 302874607 by senormarquez on Friday 15th of November 2013 04:31:56 PM
Old 11-15-2013
Print 4th line back from regexp
I'm looking for a way to print the 4th line back from a regular expression. Kind of like the below but it has to be the 4th line before the regexp.
  • Print the line immediately before regexp, but not the line containing the regexp.
Code:
sed -n '/regexp/{g;1!p;};h'

here is an example of logs(i chopped the logs bc each line is too long)
Code:
01:59:09,260 DEBUG SOAP REQUEST: <SOAP-ENV:..<ns1:mdn>NPANXX<
/ns1:mdn>
01:59:09,260 INFO  [com
01:59:09,273 INFO  [org.apache
01:59:09,283 INFO  [stdout]
01:59:29,780 WARNING SendProv has thrown exception

I'm looking for "SendProv has thrown exception" and want to parse the MDN where it threw the exception.

Any ideas?
Last edited by Scott; 11-15-2013 at 05:52 PM.. Reason: Code tags for data too
 

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LEARN ABOUT CENTOS

libquvi

libquvi(3)							  libquvi manual							libquvi(3)

NAME

       libquvi - Overview of query media library

DESCRIPTION

       libquvi is a cross-platform library for parsing flash media stream URLs with C API. The term "quvi" is a shorthand for "query video".

   API documentation
       <http://quvi.sourceforge.net/doc/>

   Motivation
       libquvi originates from the idea of allowing users to view the videos without having to install or use flash. It is a "workaround", not an
       "alternative" to flash.

       See also:
	<http://en.wikipedia.org/wiki/Adobe_Flash#Performance>
	<http://en.wikipedia.org/wiki/Adobe_Flash#Flash_client_security>
	<http://en.wikipedia.org/wiki/Adobe_Flash#Alternatives_to_Flash>

ENVIRONMENT

   LIBQUVI_SCRIPTSDIR
       Path to the libquvi-scripts directory. This overrides the libquvi default search paths for the scripts. See also the tutorial in the "API
       documentation".

   LIBQUVI_SHOW_SCANDIR
       If set, libquvi prints the lua script search paths to the stderr.

   LIBQUVI_SHOW_SCRIPT
       If set, the lua scripts found by libquvi are printed to the stderr.

WWW

	Home  : <http://quvi.sourceforge.net>
	gitweb: <http://repo.or.cz/w/libquvi.git>

LICENSE

       libquvi is free software, licensed under the LGPLv2.1+. The lua scripts that libquvi uses are considered as programs and using the lua
       scripts is linking.

SEE ALSO

       "libquvi-scripts(7)", quvi(1)

AUTHOR

       Toni Gundogdu <legatvs at sign gmail com>

       Thanks to all those who have contributed to the project by sending patches, reporting bugs and writing feedback. You know who you are.

v0.4.1								    2011-09-23								libquvi(3)
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