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Full Discussion: Last word of lines
Top Forums UNIX for Dummies Questions & Answers Last word of lines Post 61221 by Ygor on Monday 31st of January 2005 06:14:12 PM
Old 01-31-2005
Awk processes the BEGIN section before trying to open the file.
Code:
$ rm file1

$ awk 'BEGIN{print "before"}{print "during"}END{print "after"}' file1
before
awk: fatal: cannot open file `file1' for reading (No such file or directory)

If your file is empty, then both the BEGIN and END sections are preocessed.
Code:
$ touch file1

$ awk 'BEGIN{print "before"}{print "during"}END{print "after"}' file1
before
after

There only one condition where the END section is processed but the BEGIN section is not processed: you have miss-spelled "BEGIN".
 

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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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