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Full Discussion: Help understanding a script
Top Forums Shell Programming and Scripting Help understanding a script Post 302358931 by tenderfoot on Monday 5th of October 2009 08:37:05 AM
Old 10-05-2009
Help understanding a script

Hello everybody,

Can anybody tell me of what "~" refers to in the below code snippet.

Code:
 
lsvg $vgNAME | awk 'BEGIN {freeDISK=1} {if (($4 ~ /PP/ && $5 ~ /SIZE/) || ($4 ~ /FREE/ && $5 ~ /PPs/)) {freeDISK *= $6 }} END {print freeDISK*1024 }'

Thanks in advance,
 

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PPI::Statement::Scheduled(3)				User Contributed Perl Documentation			      PPI::Statement::Scheduled(3)

NAME
PPI::Statement::Scheduled - A scheduled code block INHERITANCE
PPI::Statement::Scheduled isa PPI::Statement::Sub isa PPI::Statement isa PPI::Node isa PPI::Element DESCRIPTION
A scheduled code block is one that is intended to be run at a specific time during the loading process. There are five types of scheduled block: BEGIN { # Executes as soon as this block is fully defined ... } CHECK { # Executes after overall compile-phase in reverse order ... } UNITCHECK { # Executes after compile-phase of individual module in reverse order ... } INIT { # Executes just before run-time ... } END { # Executes as late as possible in reverse order ... } Technically these scheduled blocks are actually subroutines, and in fact may have 'sub' in front of them. METHODS
type The "type" method returns the type of scheduled block, which should always be one of 'BEGIN', 'CHECK', 'UNITCHECK', 'INIT' or 'END'. TO DO
- Write unit tests for this package SUPPORT
See the support section in the main module. AUTHOR
Adam Kennedy <adamk@cpan.org> COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.18.2 2011-02-25 PPI::Statement::Scheduled(3)
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