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PerlIO::excl(3) User Contributed Perl Documentation PerlIO::excl(3)

PerlIO::excl - Creates a file only if it doesn't exist 

        open my $io,  '+<:excl', 'foo.txt';

"PerlIO::excl" appends "O_EXCL" to the open flags.

When you'd like to create a file only if it doesn't exist before, you can use the ":excl" layer.

This is a pseudo layer that doesn't be pushed on the layer stack.

PerlIO::Util.

"sysopen" in perlfunc.

Goro Fuji (藤 吾郎) <gfuji (at) cpan.org>

Copyright (c) 2008, Goro Fuji <gfuji (at) cpan.org>. Some rights reserved.

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

2011-05-25 perl v5.32.1
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