in reply to How to get a file's full path?

Try File::Spec, namely its rel2abs() function: 
$abs_path = File::Spec->rel2abs( $path ) ;
$abs_path = File::Spec->rel2abs( $path, $base ) ;

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It's a builtin module (at least in 5.8.7) so installation shouldn't be a concern.

Update:
See also the extended discussion at Absolute pathnames from relative?.

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Re^2: How to get a file's full path?
by bart (Canon) on Aug 14, 2005 at 11:17 UTC
    Try File::Spec, namely its rel2abs() function:
    It's not a function, it's a class method. If you want a function — and I can understand that, try File::Spec::Functions (also standard) instead. 
    use File::Spec::Functions qw(rel2abs);

$abs_path = rel2abs( $path );

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[d/l]

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