04-06-2002
lesstjm is asking how to make sure a file is not zero bytes. I think he wants to test actual file content, in which case he will want the -s option. But since the sample code used a variable, that leaves the door open to the other interpretation of wanting to test content of the variable instead of the file it references.
So just to clarify, -s will test the file itself for content, and -z and -n will test the contents of the variable.
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LEARN ABOUT DEBIAN
file::slurp::withinpolicy
File::Slurp::WithinPolicy(3pm) User Contributed Perl Documentation File::Slurp::WithinPolicy(3pm)
NAME
File::Slurp::WithinPolicy - Applies filesystem policies to File::Slurp
SYNOPSIS
use File::Slurp::WithinPolicy qw(:all);
my $text = read_file( 'filename' );
my @lines = read_file( 'filename' );
write_file( 'filename', $text );
append_file( 'filename', $more_text );
overwrite_file( 'filename', $text );
my @files = read_dir( '/path/to/dir' );
DESCRIPTION
This provides the File::Slurp interface within a policy defined by File::Policy. By default, File::Policy is a no-op and this behaves
identically to File::Slurp. System administrators may want to override the default File::Policy implementation to enforce a local filesys-
tem policy (see File::Policy).
FUNCTIONS
read_dir
See "read_dir" in File::Slurp
read_file
See "read_file" in File::Slurp
write_file
See "write_file" in File::Slurp
append_file
See "append_file" in File::Slurp
overwrite_file
See "overwrite_file" in File::Slurp
EXPORTS
By default, nothing is exported. The ":all" tag can be used to export everything. Individual methods can also be exported.
SEE ALSO
File::Slurp, File::Policy
VERSION
$Revision: 1.4 $ on $Date: 2005/06/15 10:40:21 $ by $Author: simonf $
AUTHOR
John Alden <cpan _at_ bbc _dot_ co _dot_ uk>
COPYRIGHT
(c) BBC 2005. This program is free software; you can redistribute it and/or modify it under the GNU GPL.
See the file COPYING in this distribution, or http://www.gnu.org/licenses/gpl.txt
perl v5.8.8 2005-06-15 File::Slurp::WithinPolicy(3pm)