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Full Discussion: Help with understanding this regex in a Perl script parsing a 'complex' string
Top Forums UNIX for Beginners Questions & Answers Help with understanding this regex in a Perl script parsing a 'complex' string Post 303035639 by RudiC on Wednesday 29th of May 2019 03:35:23 PM
Old 05-29-2019
OK, let's use the star (*) as the field separator, and don't forget to adapt the SRV variable:
Code:
awk '
function chop(FLD, STR)          {if (match ($FLD, STR "=[^)]*")) return substr ($FLD, RSTART, RLENGTH)
                                 }
match ($0, "SERVICE_NAME=" SRV)  {print chop(2, "PROGRAM"), chop(2, "USER"), chop(2,"HOST"), chop(3, "HOST")
                                 }
' SRV="work_app" FS="\*" OFS="\t" file1
PROGRAM=JDBC Thin Client    USER=mickey    HOST=__jdbc__    HOST=12.123.11.123
PROGRAM=SQL Developer    USER=minnie    HOST=__jdbc__    HOST=10.214.14.29
PROGRAM=JDBC Thin Client    USER=mickey    HOST=__jdbc__    HOST=12.123.11.123
PROGRAM=SQL Developer    USER=minnie    HOST=__jdbc__    HOST=10.214.14.29

Code:
awk '
function chop(FLD, STR)          {if (match ($FLD, STR "=[^)]*")) return substr ($FLD, RSTART, RLENGTH)
                                 }
match ($0, "SERVICE_NAME=" SRV)  {print chop(2, "PROGRAM"), chop(2, "USER"), chop(2,"HOST"), chop(3, "HOST")
                                 }
' SRV="work_app" FS="\*" OFS="\t" file2
philipp@philipp-All-Series:~/MediathekView/playground$ awk '
function chop(FLD, STR)          {if (match ($FLD, STR "=[^)]*")) return substr ($FLD, RSTART, RLENGTH)
                                 }
match ($0, "SERVICE_NAME=" SRV)  {print chop(2, "PROGRAM"), chop(2, "USER"), chop(2,"HOST"), chop(3, "HOST")
                                 }
' SRV="fail_app" FS="\*" OFS="\t" file2
PROGRAM=C:\Windows\system32\exec01.exe    USER=!sysadmin01    HOST=MNLAPP01    HOST=10.11.11.123
PROGRAM=C:\Windows\system32\exec02.exe    USER=!sysadmin01    HOST=MNLAPP01    HOST=10.11.11.123
PROGRAM=C:\Windows\system32\exec03.exe    USER=!sysadmin01    HOST=MNLAPP01    HOST=10.11.11.123
PROGRAM=C:\Windows\system32\exec01.exe    USER=!sysadmin01    HOST=MNLAPP01    HOST=10.11.11.123

 

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LEARN ABOUT DEBIAN

test::valgrind::command::perlscript

Test::Valgrind::Command::PerlScript(3pm)		User Contributed Perl Documentation		  Test::Valgrind::Command::PerlScript(3pm)

NAME

       Test::Valgrind::Command::PerlScript - A Test::Valgrind command that invokes a perl script.

VERSION

       Version 1.13

DESCRIPTION

       This command is meant to abstract the argument list handling of a "perl" script.

METHODS

       This class inherits Test::Valgrind::Command::Perl.

   "new file => $file, [ taint_mode => $taint_mode ], ..."
       The package constructor, which takes several options :

       o   $file is the path to the "perl" script you want to run.

	   This option is mandatory.

       o   $taint_mode is actually handled by the parent class Test::Valgrind::Command::Perl, but it gets special handling in this subclass : if
	   "undef" is passed (which is the default), the constructor will try to infer its right value from the shebang line of the script.

       Other arguments are passed straight to "Test::Valgrind::Command::Perl->new".

   "file"
       Read-only accessor for the "file" option.

SEE ALSO

       Test::Valgrind, Test::Valgrind::Command::Perl.

AUTHOR

       Vincent Pit, "<perl at profvince.com>", <http://www.profvince.com>.

       You can contact me by mail or on "irc.perl.org" (vincent).

BUGS

       Please report any bugs or feature requests to "bug-test-valgrind at rt.cpan.org", or through the web interface at
       http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Valgrind <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Valgrind>.  I will be
       notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

       You can find documentation for this module with the perldoc command.

	   perldoc Test::Valgrind::Command::PerlScript

COPYRIGHT &; LICENSE
       Copyright 2009,2010,2011 Vincent Pit, all rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.12.4							    2011-08-25				  Test::Valgrind::Command::PerlScript(3pm)
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