1Dir::Self(3) User Contributed Perl Documentation Dir::Self(3)
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6 Dir::Self - a __DIR__ constant for the directory your source file is in
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9 use Dir::Self;
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11 use lib __DIR__ . "/lib";
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13 my $conffile = __DIR__ . "/config";
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16 Perl has two pseudo-constants describing the current location in your
17 source code, "__FILE__" and "__LINE__". This module adds "__DIR__",
18 which expands to the directory your source file is in, as an absolute
19 pathname.
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21 This is useful if your code wants to access files in the same
22 directory, like helper modules or configuration data. This is a bit
23 like FindBin except it's not limited to the main program, i.e. you can
24 also use it in modules. And it actually works.
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26 As of version 0.10 each use of "__DIR__" recomputes the directory name;
27 this ensures that files in different directories that share the same
28 package name get correct results. If you don't want this, "use
29 Dir::Self qw(:static)" will create a true "__DIR__" constant in your
30 package that contains the directory name at the point of "use".
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33 Lukas Mai <l.mai @web.de>
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36 Copyright (C) 2007, 2008, 2013 by Lukas Mai
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38 This library is free software; you can redistribute it and/or modify it
39 under the same terms as Perl itself, either Perl version 5.8.8 or, at
40 your option, any later version of Perl 5 you may have available.
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44perl v5.36.0 2022-07-22 Dir::Self(3)