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How do I get the full path for a file?

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Contributed by Anonymous Monk on Apr 13, 2000 at 23:59 UTC
Q&A  > files


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Answer: How do I get the full path for a file?
contributed by Fastolfe

If you have a filename, then you probably already have some "relative" path to that filename, even if we're making the assumption that you're working from the current directory.

In this case, File::Spec will do the job for you with its rel2abs function:

$abs_path = File::Spec->rel2abs($filename);
If you have a file but have no idea where it's located, you might want to use File::Find.
Answer: how do I get fullpath for a file
contributed by turnstep

Add this to the top of your code:

use Cwd;

Then you can just:

$thisdir = cwd();

This gets the directory the "safest" way. If you are definitely on unix, however, you can simply say:

$thisdir = `pwd`;
which is usually what Cwd does on unix systems. It has a few other options, such as fastcwd() and getcwd() but they are not used much. You can grab the name of the script itself by looking in $0 or even __FILE__.

If you are doing it through the web, check out the environment variable 'SCRIPT_FILENAME'

$pwd = $ENV{'SCRIPT_FILENAME'};

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